Home / 1,047,128.54-1,569,239.61-477,116.61

Finding the Fourth Proportional to 1,047,128.54, 1,569,239.61 and 477,116.61

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Solution

The fourth proportional to 1,047,128.54, 1,569,239.61 and 477,116.61 is: 715,012.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,047,128.54 : 1,569,239.61 = 477,116.61 : x
  2. Step 2: Convert to fraction form
    1,047,128.54/1,569,239.61 = 477,116.61/x
  3. Step 3: Cross multiply
    1,047,128.54x = 1,569,239.61 × 477,116.61
  4. Step 4: Simplify right side
    1,047,128.54x = 748,710,283,000.92
  5. Step 5: Solve for x
    x = 748,710,283,000.92/1,047,128.54
  6. Step 6: Final answer
    x = 715,012.78

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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.