Home / 724,810.40-1,087,215.60-538,186.40

Finding the Fourth Proportional to 724,810.40, 1,087,215.60 and 538,186.40

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Solution

The fourth proportional to 724,810.40, 1,087,215.60 and 538,186.40 is: 807,279.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    724,810.40 : 1,087,215.60 = 538,186.40 : x
  2. Step 2: Convert to fraction form
    724,810.40/1,087,215.60 = 538,186.40/x
  3. Step 3: Cross multiply
    724,810.40x = 1,087,215.60 × 538,186.40
  4. Step 4: Simplify right side
    724,810.40x = 585,124,649,787.84
  5. Step 5: Solve for x
    x = 585,124,649,787.84/724,810.40
  6. Step 6: Final answer
    x = 807,279.60

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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.