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Finding the Fourth Proportional to 497,752.40, 746,628.60 and 340,288.40

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Solution

The fourth proportional to 497,752.40, 746,628.60 and 340,288.40 is: 510,432.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    497,752.40 : 746,628.60 = 340,288.40 : x
  2. Step 2: Convert to fraction form
    497,752.40/746,628.60 = 340,288.40/x
  3. Step 3: Cross multiply
    497,752.40x = 746,628.60 × 340,288.40
  4. Step 4: Simplify right side
    497,752.40x = 254,069,051,688.24
  5. Step 5: Solve for x
    x = 254,069,051,688.24/497,752.40
  6. Step 6: Final answer
    x = 510,432.60

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Similar ratio
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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.