Home / 739,452.56-1,020,444.54-399,920.81

Finding the Fourth Proportional to 739,452.56, 1,020,444.54 and 399,920.81

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Solution

The fourth proportional to 739,452.56, 1,020,444.54 and 399,920.81 is: 551,890.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    739,452.56 : 1,020,444.54 = 399,920.81 : x
  2. Step 2: Convert to fraction form
    739,452.56/1,020,444.54 = 399,920.81/x
  3. Step 3: Cross multiply
    739,452.56x = 1,020,444.54 × 399,920.81
  4. Step 4: Simplify right side
    739,452.56x = 408,097,009,547.99
  5. Step 5: Solve for x
    x = 408,097,009,547.99/739,452.56
  6. Step 6: Final answer
    x = 551,890.72

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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.