Home / 658,848.60-988,272.90-434,462.40

Finding the Fourth Proportional to 658,848.60, 988,272.90 and 434,462.40

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Solution

The fourth proportional to 658,848.60, 988,272.90 and 434,462.40 is: 651,693.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    658,848.60 : 988,272.90 = 434,462.40 : x
  2. Step 2: Convert to fraction form
    658,848.60/988,272.90 = 434,462.40/x
  3. Step 3: Cross multiply
    658,848.60x = 988,272.90 × 434,462.40
  4. Step 4: Simplify right side
    658,848.60x = 429,367,415,988.96
  5. Step 5: Solve for x
    x = 429,367,415,988.96/658,848.60
  6. Step 6: Final answer
    x = 651,693.60

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Half scale
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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.