Home / 1,020,387.98-1,530,531.35-380,641.88

Finding the Fourth Proportional to 1,020,387.98, 1,530,531.35 and 380,641.88

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Solution

The fourth proportional to 1,020,387.98, 1,530,531.35 and 380,641.88 is: 570,943.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,020,387.98 : 1,530,531.35 = 380,641.88 : x
  2. Step 2: Convert to fraction form
    1,020,387.98/1,530,531.35 = 380,641.88/x
  3. Step 3: Cross multiply
    1,020,387.98x = 1,530,531.35 × 380,641.88
  4. Step 4: Simplify right side
    1,020,387.98x = 582,584,333,813.46
  5. Step 5: Solve for x
    x = 582,584,333,813.46/1,020,387.98
  6. Step 6: Final answer
    x = 570,943.94

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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.