Home / 875,854.83-1,208,695.40-513,381.45

Finding the Fourth Proportional to 875,854.83, 1,208,695.40 and 513,381.45

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Solution

The fourth proportional to 875,854.83, 1,208,695.40 and 513,381.45 is: 708,475.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    875,854.83 : 1,208,695.40 = 513,381.45 : x
  2. Step 2: Convert to fraction form
    875,854.83/1,208,695.40 = 513,381.45/x
  3. Step 3: Cross multiply
    875,854.83x = 1,208,695.40 × 513,381.45
  4. Step 4: Simplify right side
    875,854.83x = 620,521,797,060.33
  5. Step 5: Solve for x
    x = 620,521,797,060.33/875,854.83
  6. Step 6: Final answer
    x = 708,475.62

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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.