Home / 763,695.24-1,053,029.88-487,681.32

Finding the Fourth Proportional to 763,695.24, 1,053,029.88 and 487,681.32

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Solution

The fourth proportional to 763,695.24, 1,053,029.88 and 487,681.32 is: 672,444.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    763,695.24 : 1,053,029.88 = 487,681.32 : x
  2. Step 2: Convert to fraction form
    763,695.24/1,053,029.88 = 487,681.32/x
  3. Step 3: Cross multiply
    763,695.24x = 1,053,029.88 × 487,681.32
  4. Step 4: Simplify right side
    763,695.24x = 513,543,001,877.84
  5. Step 5: Solve for x
    x = 513,543,001,877.84/763,695.24
  6. Step 6: Final answer
    x = 672,444.94

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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.