Home / 739,177.80-1,020,064.50-399,645.24

Finding the Fourth Proportional to 739,177.80, 1,020,064.50 and 399,645.24

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Solution

The fourth proportional to 739,177.80, 1,020,064.50 and 399,645.24 is: 551,509.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    739,177.80 : 1,020,064.50 = 399,645.24 : x
  2. Step 2: Convert to fraction form
    739,177.80/1,020,064.50 = 399,645.24/x
  3. Step 3: Cross multiply
    739,177.80x = 1,020,064.50 × 399,645.24
  4. Step 4: Simplify right side
    739,177.80x = 407,663,921,917.98
  5. Step 5: Solve for x
    x = 407,663,921,917.98/739,177.80
  6. Step 6: Final answer
    x = 551,509.96

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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.