Home / 739,158.40-1,020,036.40-399,626.65

Finding the Fourth Proportional to 739,158.40, 1,020,036.40 and 399,626.65

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Solution

The fourth proportional to 739,158.40, 1,020,036.40 and 399,626.65 is: 551,483.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    739,158.40 : 1,020,036.40 = 399,626.65 : x
  2. Step 2: Convert to fraction form
    739,158.40/1,020,036.40 = 399,626.65/x
  3. Step 3: Cross multiply
    739,158.40x = 1,020,036.40 × 399,626.65
  4. Step 4: Simplify right side
    739,158.40x = 407,633,729,410.06
  5. Step 5: Solve for x
    x = 407,633,729,410.06/739,158.40
  6. Step 6: Final answer
    x = 551,483.59

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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.