Home / 739,434.64-1,020,420.12-417,143.92

Finding the Fourth Proportional to 739,434.64, 1,020,420.12 and 417,143.92

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Solution

The fourth proportional to 739,434.64, 1,020,420.12 and 417,143.92 is: 575,658.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    739,434.64 : 1,020,420.12 = 417,143.92 : x
  2. Step 2: Convert to fraction form
    739,434.64/1,020,420.12 = 417,143.92/x
  3. Step 3: Cross multiply
    739,434.64x = 1,020,420.12 × 417,143.92
  4. Step 4: Simplify right side
    739,434.64x = 425,662,048,903.67
  5. Step 5: Solve for x
    x = 425,662,048,903.67/739,434.64
  6. Step 6: Final answer
    x = 575,658.79

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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.