Home / 745,790.71-1,029,114.48-419,051.83

Finding the Fourth Proportional to 745,790.71, 1,029,114.48 and 419,051.83

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Solution

The fourth proportional to 745,790.71, 1,029,114.48 and 419,051.83 is: 578,248.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    745,790.71 : 1,029,114.48 = 419,051.83 : x
  2. Step 2: Convert to fraction form
    745,790.71/1,029,114.48 = 419,051.83/x
  3. Step 3: Cross multiply
    745,790.71x = 1,029,114.48 × 419,051.83
  4. Step 4: Simplify right side
    745,790.71x = 431,252,306,123.50
  5. Step 5: Solve for x
    x = 431,252,306,123.50/745,790.71
  6. Step 6: Final answer
    x = 578,248.43

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1.5x scale

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.