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Finding the Fourth Proportional to 1,877,074.72, 2,815,612.03 and 865,897.50

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Solution

The fourth proportional to 1,877,074.72, 2,815,612.03 and 865,897.50 is: 1,298,846.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,877,074.72 : 2,815,612.03 = 865,897.50 : x
  2. Step 2: Convert to fraction form
    1,877,074.72/2,815,612.03 = 865,897.50/x
  3. Step 3: Cross multiply
    1,877,074.72x = 2,815,612.03 × 865,897.50
  4. Step 4: Simplify right side
    1,877,074.72x = 2,438,031,417,746.92
  5. Step 5: Solve for x
    x = 2,438,031,417,746.92/1,877,074.72
  6. Step 6: Final answer
    x = 1,298,846.23

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.