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Finding the Fourth Proportional to 459,007.10, 688,510.65 and 434,512.70

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Solution

The fourth proportional to 459,007.10, 688,510.65 and 434,512.70 is: 651,769.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    459,007.10 : 688,510.65 = 434,512.70 : x
  2. Step 2: Convert to fraction form
    459,007.10/688,510.65 = 434,512.70/x
  3. Step 3: Cross multiply
    459,007.10x = 688,510.65 × 434,512.70
  4. Step 4: Simplify right side
    459,007.10x = 299,166,621,510.26
  5. Step 5: Solve for x
    x = 299,166,621,510.26/459,007.10
  6. Step 6: Final answer
    x = 651,769.05

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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.