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Finding the Fourth Proportional to 477,627.70, 716,441.55 and 459,256.90

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Solution

The fourth proportional to 477,627.70, 716,441.55 and 459,256.90 is: 688,885.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    477,627.70 : 716,441.55 = 459,256.90 : x
  2. Step 2: Convert to fraction form
    477,627.70/716,441.55 = 459,256.90/x
  3. Step 3: Cross multiply
    477,627.70x = 716,441.55 × 459,256.90
  4. Step 4: Simplify right side
    477,627.70x = 329,030,725,284.20
  5. Step 5: Solve for x
    x = 329,030,725,284.20/477,627.70
  6. Step 6: Final answer
    x = 688,885.35

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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.