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Finding the Fourth Proportional to 497,432.80, 744,982.80 and 338,802.40

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Solution

The fourth proportional to 497,432.80, 744,982.80 and 338,802.40 is: 507,409.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    497,432.80 : 744,982.80 = 338,802.40 : x
  2. Step 2: Convert to fraction form
    497,432.80/744,982.80 = 338,802.40/x
  3. Step 3: Cross multiply
    497,432.80x = 744,982.80 × 338,802.40
  4. Step 4: Simplify right side
    497,432.80x = 252,401,960,598.72
  5. Step 5: Solve for x
    x = 252,401,960,598.72/497,432.80
  6. Step 6: Final answer
    x = 507,409.16

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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.