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Finding the Fourth Proportional to 457,795.68, 631,746.72 and 253,847.40

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Solution

The fourth proportional to 457,795.68, 631,746.72 and 253,847.40 is: 350,303.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    457,795.68 : 631,746.72 = 253,847.40 : x
  2. Step 2: Convert to fraction form
    457,795.68/631,746.72 = 253,847.40/x
  3. Step 3: Cross multiply
    457,795.68x = 631,746.72 × 253,847.40
  4. Step 4: Simplify right side
    457,795.68x = 160,367,262,330.53
  5. Step 5: Solve for x
    x = 160,367,262,330.53/457,795.68
  6. Step 6: Final answer
    x = 350,303.14

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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.