Home / 739,439.51-1,020,436.37-417,148.61

Finding the Fourth Proportional to 739,439.51, 1,020,436.37 and 417,148.61

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Solution

The fourth proportional to 739,439.51, 1,020,436.37 and 417,148.61 is: 575,670.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    739,439.51 : 1,020,436.37 = 417,148.61 : x
  2. Step 2: Convert to fraction form
    739,439.51/1,020,436.37 = 417,148.61/x
  3. Step 3: Cross multiply
    739,439.51x = 1,020,436.37 × 417,148.61
  4. Step 4: Simplify right side
    739,439.51x = 425,673,606,151.02
  5. Step 5: Solve for x
    x = 425,673,606,151.02/739,439.51
  6. Step 6: Final answer
    x = 575,670.63

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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.