Home / 745,769.29-1,029,128.42-435,700.61

Finding the Fourth Proportional to 745,769.29, 1,029,128.42 and 435,700.61

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Solution

The fourth proportional to 745,769.29, 1,029,128.42 and 435,700.61 is: 601,247.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    745,769.29 : 1,029,128.42 = 435,700.61 : x
  2. Step 2: Convert to fraction form
    745,769.29/1,029,128.42 = 435,700.61/x
  3. Step 3: Cross multiply
    745,769.29x = 1,029,128.42 × 435,700.61
  4. Step 4: Simplify right side
    745,769.29x = 448,391,881,845.91
  5. Step 5: Solve for x
    x = 448,391,881,845.91/745,769.29
  6. Step 6: Final answer
    x = 601,247.45

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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.