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Finding the Fourth Proportional to 583,903.80, 875,855.70 and 489,425.40

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Solution

The fourth proportional to 583,903.80, 875,855.70 and 489,425.40 is: 734,138.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    583,903.80 : 875,855.70 = 489,425.40 : x
  2. Step 2: Convert to fraction form
    583,903.80/875,855.70 = 489,425.40/x
  3. Step 3: Cross multiply
    583,903.80x = 875,855.70 × 489,425.40
  4. Step 4: Simplify right side
    583,903.80x = 428,666,026,314.78
  5. Step 5: Solve for x
    x = 428,666,026,314.78/583,903.80
  6. Step 6: Final answer
    x = 734,138.10

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Similar ratio
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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.