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Finding the Fourth Proportional to 549,646.28, 758,510.20 and 304,646.68

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Solution

The fourth proportional to 549,646.28, 758,510.20 and 304,646.68 is: 420,411.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    549,646.28 : 758,510.20 = 304,646.68 : x
  2. Step 2: Convert to fraction form
    549,646.28/758,510.20 = 304,646.68/x
  3. Step 3: Cross multiply
    549,646.28x = 758,510.20 × 304,646.68
  4. Step 4: Simplify right side
    549,646.28x = 231,077,614,176.14
  5. Step 5: Solve for x
    x = 231,077,614,176.14/549,646.28
  6. Step 6: Final answer
    x = 420,411.49

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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.