Home / 916,064.60-1,374,384.90-442,765.40

Finding the Fourth Proportional to 916,064.60, 1,374,384.90 and 442,765.40

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Solution

The fourth proportional to 916,064.60, 1,374,384.90 and 442,765.40 is: 664,287.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    916,064.60 : 1,374,384.90 = 442,765.40 : x
  2. Step 2: Convert to fraction form
    916,064.60/1,374,384.90 = 442,765.40/x
  3. Step 3: Cross multiply
    916,064.60x = 1,374,384.90 × 442,765.40
  4. Step 4: Simplify right side
    916,064.60x = 608,530,080,002.46
  5. Step 5: Solve for x
    x = 608,530,080,002.46/916,064.60
  6. Step 6: Final answer
    x = 664,287.30

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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.