Home / 459,006.30-688,509.45-425,828.70

Finding the Fourth Proportional to 459,006.30, 688,509.45 and 425,828.70

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Solution

The fourth proportional to 459,006.30, 688,509.45 and 425,828.70 is: 638,743.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    459,006.30 : 688,509.45 = 425,828.70 : x
  2. Step 2: Convert to fraction form
    459,006.30/688,509.45 = 425,828.70/x
  3. Step 3: Cross multiply
    459,006.30x = 688,509.45 × 425,828.70
  4. Step 4: Simplify right side
    459,006.30x = 293,187,084,031.22
  5. Step 5: Solve for x
    x = 293,187,084,031.22/459,006.30
  6. Step 6: Final answer
    x = 638,743.05

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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.