Home / 724,686.80-1,087,068.06-219,235.05

Finding the Fourth Proportional to 724,686.80, 1,087,068.06 and 219,235.05

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Solution

The fourth proportional to 724,686.80, 1,087,068.06 and 219,235.05 is: 328,864.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    724,686.80 : 1,087,068.06 = 219,235.05 : x
  2. Step 2: Convert to fraction form
    724,686.80/1,087,068.06 = 219,235.05/x
  3. Step 3: Cross multiply
    724,686.80x = 1,087,068.06 × 219,235.05
  4. Step 4: Simplify right side
    724,686.80x = 238,323,420,487.50
  5. Step 5: Solve for x
    x = 238,323,420,487.50/724,686.80
  6. Step 6: Final answer
    x = 328,864.03

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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.