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Finding the Fourth Proportional to 648,259.74, 894,647.90 and 357,927.28

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Solution

The fourth proportional to 648,259.74, 894,647.90 and 357,927.28 is: 493,966.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    648,259.74 : 894,647.90 = 357,927.28 : x
  2. Step 2: Convert to fraction form
    648,259.74/894,647.90 = 357,927.28/x
  3. Step 3: Cross multiply
    648,259.74x = 894,647.90 × 357,927.28
  4. Step 4: Simplify right side
    648,259.74x = 320,218,888,062.91
  5. Step 5: Solve for x
    x = 320,218,888,062.91/648,259.74
  6. Step 6: Final answer
    x = 493,966.95

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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.