Home / 916,731.52-1,265,070.44-508,809.44

Finding the Fourth Proportional to 916,731.52, 1,265,070.44 and 508,809.44

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Solution

The fourth proportional to 916,731.52, 1,265,070.44 and 508,809.44 is: 702,146.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    916,731.52 : 1,265,070.44 = 508,809.44 : x
  2. Step 2: Convert to fraction form
    916,731.52/1,265,070.44 = 508,809.44/x
  3. Step 3: Cross multiply
    916,731.52x = 1,265,070.44 × 508,809.44
  4. Step 4: Simplify right side
    916,731.52x = 643,679,782,136.95
  5. Step 5: Solve for x
    x = 643,679,782,136.95/916,731.52
  6. Step 6: Final answer
    x = 702,146.45

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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.