Home / 724,808.40-1,087,385.40-369,877.20

Finding the Fourth Proportional to 724,808.40, 1,087,385.40 and 369,877.20

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Solution

The fourth proportional to 724,808.40, 1,087,385.40 and 369,877.20 is: 554,903.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    724,808.40 : 1,087,385.40 = 369,877.20 : x
  2. Step 2: Convert to fraction form
    724,808.40/1,087,385.40 = 369,877.20/x
  3. Step 3: Cross multiply
    724,808.40x = 1,087,385.40 × 369,877.20
  4. Step 4: Simplify right side
    724,808.40x = 402,199,067,072.88
  5. Step 5: Solve for x
    x = 402,199,067,072.88/724,808.40
  6. Step 6: Final answer
    x = 554,903.98

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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.