Home / 803,374.08-1,205,683.20-429,711.36

Finding the Fourth Proportional to 803,374.08, 1,205,683.20 and 429,711.36

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Solution

The fourth proportional to 803,374.08, 1,205,683.20 and 429,711.36 is: 644,899.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    803,374.08 : 1,205,683.20 = 429,711.36 : x
  2. Step 2: Convert to fraction form
    803,374.08/1,205,683.20 = 429,711.36/x
  3. Step 3: Cross multiply
    803,374.08x = 1,205,683.20 × 429,711.36
  4. Step 4: Simplify right side
    803,374.08x = 518,095,767,601.15
  5. Step 5: Solve for x
    x = 518,095,767,601.15/803,374.08
  6. Step 6: Final answer
    x = 644,899.78

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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.