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Finding the Fourth Proportional to 660,034.88, 910,849.04 and 358,228.88

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Solution

The fourth proportional to 660,034.88, 910,849.04 and 358,228.88 is: 494,356.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    660,034.88 : 910,849.04 = 358,228.88 : x
  2. Step 2: Convert to fraction form
    660,034.88/910,849.04 = 358,228.88/x
  3. Step 3: Cross multiply
    660,034.88x = 910,849.04 × 358,228.88
  4. Step 4: Simplify right side
    660,034.88x = 326,292,431,448.28
  5. Step 5: Solve for x
    x = 326,292,431,448.28/660,034.88
  6. Step 6: Final answer
    x = 494,356.35

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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.