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Finding the Fourth Proportional to 679,218.60, 937,342.75 and 373,289.43

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Solution

The fourth proportional to 679,218.60, 937,342.75 and 373,289.43 is: 515,151.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    679,218.60 : 937,342.75 = 373,289.43 : x
  2. Step 2: Convert to fraction form
    679,218.60/937,342.75 = 373,289.43/x
  3. Step 3: Cross multiply
    679,218.60x = 937,342.75 × 373,289.43
  4. Step 4: Simplify right side
    679,218.60x = 349,900,140,862.13
  5. Step 5: Solve for x
    x = 349,900,140,862.13/679,218.60
  6. Step 6: Final answer
    x = 515,151.00

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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.