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Finding the Fourth Proportional to 661,973.88, 913,521.42 and 360,172.92

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Solution

The fourth proportional to 661,973.88, 913,521.42 and 360,172.92 is: 497,037.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    661,973.88 : 913,521.42 = 360,172.92 : x
  2. Step 2: Convert to fraction form
    661,973.88/913,521.42 = 360,172.92/x
  3. Step 3: Cross multiply
    661,973.88x = 913,521.42 × 360,172.92
  4. Step 4: Simplify right side
    661,973.88x = 329,025,677,323.95
  5. Step 5: Solve for x
    x = 329,025,677,323.95/661,973.88
  6. Step 6: Final answer
    x = 497,037.25

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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.