Home / 1,428,472.05-1,970,983.49-824,510.13

Finding the Fourth Proportional to 1,428,472.05, 1,970,983.49 and 824,510.13

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Solution

The fourth proportional to 1,428,472.05, 1,970,983.49 and 824,510.13 is: 1,137,646.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,428,472.05 : 1,970,983.49 = 824,510.13 : x
  2. Step 2: Convert to fraction form
    1,428,472.05/1,970,983.49 = 824,510.13/x
  3. Step 3: Cross multiply
    1,428,472.05x = 1,970,983.49 × 824,510.13
  4. Step 4: Simplify right side
    1,428,472.05x = 1,625,095,853,567.75
  5. Step 5: Solve for x
    x = 1,625,095,853,567.75/1,428,472.05
  6. Step 6: Final answer
    x = 1,137,646.24

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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.