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Finding the Fourth Proportional to 663,607.04, 915,797.76 and 361,806.08

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Solution

The fourth proportional to 663,607.04, 915,797.76 and 361,806.08 is: 499,303.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    663,607.04 : 915,797.76 = 361,806.08 : x
  2. Step 2: Convert to fraction form
    663,607.04/915,797.76 = 361,806.08/x
  3. Step 3: Cross multiply
    663,607.04x = 915,797.76 × 361,806.08
  4. Step 4: Simplify right side
    663,607.04x = 331,341,197,618.38
  5. Step 5: Solve for x
    x = 331,341,197,618.38/663,607.04
  6. Step 6: Final answer
    x = 499,303.32

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.