Home / 465,432.20-698,148.30-288,285.20

Finding the Fourth Proportional to 465,432.20, 698,148.30 and 288,285.20

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Solution

The fourth proportional to 465,432.20, 698,148.30 and 288,285.20 is: 432,427.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    465,432.20 : 698,148.30 = 288,285.20 : x
  2. Step 2: Convert to fraction form
    465,432.20/698,148.30 = 288,285.20/x
  3. Step 3: Cross multiply
    465,432.20x = 698,148.30 × 288,285.20
  4. Step 4: Simplify right side
    465,432.20x = 201,265,822,295.16
  5. Step 5: Solve for x
    x = 201,265,822,295.16/465,432.20
  6. Step 6: Final answer
    x = 432,427.80

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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.