Home / 698,179.80-1,047,269.70-432,459.30

Finding the Fourth Proportional to 698,179.80, 1,047,269.70 and 432,459.30

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Solution

The fourth proportional to 698,179.80, 1,047,269.70 and 432,459.30 is: 648,688.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    698,179.80 : 1,047,269.70 = 432,459.30 : x
  2. Step 2: Convert to fraction form
    698,179.80/1,047,269.70 = 432,459.30/x
  3. Step 3: Cross multiply
    698,179.80x = 1,047,269.70 × 432,459.30
  4. Step 4: Simplify right side
    698,179.80x = 452,901,521,373.21
  5. Step 5: Solve for x
    x = 452,901,521,373.21/698,179.80
  6. Step 6: Final answer
    x = 648,688.95

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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.