Home / 739,409.78-1,020,432.74-417,002.24

Finding the Fourth Proportional to 739,409.78, 1,020,432.74 and 417,002.24

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Solution

The fourth proportional to 739,409.78, 1,020,432.74 and 417,002.24 is: 575,489.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    739,409.78 : 1,020,432.74 = 417,002.24 : x
  2. Step 2: Convert to fraction form
    739,409.78/1,020,432.74 = 417,002.24/x
  3. Step 3: Cross multiply
    739,409.78x = 1,020,432.74 × 417,002.24
  4. Step 4: Simplify right side
    739,409.78x = 425,522,738,349.34
  5. Step 5: Solve for x
    x = 425,522,738,349.34/739,409.78
  6. Step 6: Final answer
    x = 575,489.74

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Double scale
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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.