Home / 739,701.48-1,020,778.04-413,019.54

Finding the Fourth Proportional to 739,701.48, 1,020,778.04 and 413,019.54

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Solution

The fourth proportional to 739,701.48, 1,020,778.04 and 413,019.54 is: 569,961.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    739,701.48 : 1,020,778.04 = 413,019.54 : x
  2. Step 2: Convert to fraction form
    739,701.48/1,020,778.04 = 413,019.54/x
  3. Step 3: Cross multiply
    739,701.48x = 1,020,778.04 × 413,019.54
  4. Step 4: Simplify right side
    739,701.48x = 421,601,276,522.90
  5. Step 5: Solve for x
    x = 421,601,276,522.90/739,701.48
  6. Step 6: Final answer
    x = 569,961.38

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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.