Home / 671,630.60-1,007,445.90-459,054.20

Finding the Fourth Proportional to 671,630.60, 1,007,445.90 and 459,054.20

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Solution

The fourth proportional to 671,630.60, 1,007,445.90 and 459,054.20 is: 688,581.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    671,630.60 : 1,007,445.90 = 459,054.20 : x
  2. Step 2: Convert to fraction form
    671,630.60/1,007,445.90 = 459,054.20/x
  3. Step 3: Cross multiply
    671,630.60x = 1,007,445.90 × 459,054.20
  4. Step 4: Simplify right side
    671,630.60x = 462,472,271,667.78
  5. Step 5: Solve for x
    x = 462,472,271,667.78/671,630.60
  6. Step 6: Final answer
    x = 688,581.30

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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.