Home / 755,246.90-1,132,870.35-419,323.70

Finding the Fourth Proportional to 755,246.90, 1,132,870.35 and 419,323.70

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Solution

The fourth proportional to 755,246.90, 1,132,870.35 and 419,323.70 is: 628,985.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    755,246.90 : 1,132,870.35 = 419,323.70 : x
  2. Step 2: Convert to fraction form
    755,246.90/1,132,870.35 = 419,323.70/x
  3. Step 3: Cross multiply
    755,246.90x = 1,132,870.35 × 419,323.70
  4. Step 4: Simplify right side
    755,246.90x = 475,039,386,782.30
  5. Step 5: Solve for x
    x = 475,039,386,782.30/755,246.90
  6. Step 6: Final answer
    x = 628,985.55

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.