Home / 916,411.80-1,264,655.22-508,515.24

Finding the Fourth Proportional to 916,411.80, 1,264,655.22 and 508,515.24

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Solution

The fourth proportional to 916,411.80, 1,264,655.22 and 508,515.24 is: 701,754.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    916,411.80 : 1,264,655.22 = 508,515.24 : x
  2. Step 2: Convert to fraction form
    916,411.80/1,264,655.22 = 508,515.24/x
  3. Step 3: Cross multiply
    916,411.80x = 1,264,655.22 × 508,515.24
  4. Step 4: Simplify right side
    916,411.80x = 643,096,452,715.55
  5. Step 5: Solve for x
    x = 643,096,452,715.55/916,411.80
  6. Step 6: Final answer
    x = 701,754.88

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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.