Home / 1,332,699.48-1,999,047.68-434,139.78

Finding the Fourth Proportional to 1,332,699.48, 1,999,047.68 and 434,139.78

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Solution

The fourth proportional to 1,332,699.48, 1,999,047.68 and 434,139.78 is: 651,209.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,332,699.48 : 1,999,047.68 = 434,139.78 : x
  2. Step 2: Convert to fraction form
    1,332,699.48/1,999,047.68 = 434,139.78/x
  3. Step 3: Cross multiply
    1,332,699.48x = 1,999,047.68 × 434,139.78
  4. Step 4: Simplify right side
    1,332,699.48x = 867,866,120,004.71
  5. Step 5: Solve for x
    x = 867,866,120,004.71/1,332,699.48
  6. Step 6: Final answer
    x = 651,209.17

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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.