Home / 755,666.57-1,042,740.45-428,875.65

Finding the Fourth Proportional to 755,666.57, 1,042,740.45 and 428,875.65

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Solution

The fourth proportional to 755,666.57, 1,042,740.45 and 428,875.65 is: 591,803.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    755,666.57 : 1,042,740.45 = 428,875.65 : x
  2. Step 2: Convert to fraction form
    755,666.57/1,042,740.45 = 428,875.65/x
  3. Step 3: Cross multiply
    755,666.57x = 1,042,740.45 × 428,875.65
  4. Step 4: Simplify right side
    755,666.57x = 447,205,988,275.04
  5. Step 5: Solve for x
    x = 447,205,988,275.04/755,666.57
  6. Step 6: Final answer
    x = 591,803.33

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1.5x scale

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.