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Finding the Fourth Proportional to 653,358.42, 901,845.99 and 423,510.21

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Solution

The fourth proportional to 653,358.42, 901,845.99 and 423,510.21 is: 584,581.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    653,358.42 : 901,845.99 = 423,510.21 : x
  2. Step 2: Convert to fraction form
    653,358.42/901,845.99 = 423,510.21/x
  3. Step 3: Cross multiply
    653,358.42x = 901,845.99 × 423,510.21
  4. Step 4: Simplify right side
    653,358.42x = 381,940,984,612.56
  5. Step 5: Solve for x
    x = 381,940,984,612.56/653,358.42
  6. Step 6: Final answer
    x = 584,581.10

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.