Home / 916,415.80-1,264,660.56-508,519.24

Finding the Fourth Proportional to 916,415.80, 1,264,660.56 and 508,519.24

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Solution

The fourth proportional to 916,415.80, 1,264,660.56 and 508,519.24 is: 701,760.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    916,415.80 : 1,264,660.56 = 508,519.24 : x
  2. Step 2: Convert to fraction form
    916,415.80/1,264,660.56 = 508,519.24/x
  3. Step 3: Cross multiply
    916,415.80x = 1,264,660.56 × 508,519.24
  4. Step 4: Simplify right side
    916,415.80x = 643,104,226,829.18
  5. Step 5: Solve for x
    x = 643,104,226,829.18/916,415.80
  6. Step 6: Final answer
    x = 701,760.30

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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.