Home / 763,115.79-1,053,047.10-423,557.31

Finding the Fourth Proportional to 763,115.79, 1,053,047.10 and 423,557.31

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Solution

The fourth proportional to 763,115.79, 1,053,047.10 and 423,557.31 is: 584,479.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    763,115.79 : 1,053,047.10 = 423,557.31 : x
  2. Step 2: Convert to fraction form
    763,115.79/1,053,047.10 = 423,557.31/x
  3. Step 3: Cross multiply
    763,115.79x = 1,053,047.10 × 423,557.31
  4. Step 4: Simplify right side
    763,115.79x = 446,025,796,979.30
  5. Step 5: Solve for x
    x = 446,025,796,979.30/763,115.79
  6. Step 6: Final answer
    x = 584,479.84

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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.