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Finding the Fourth Proportional to 679,513.83, 937,729.68 and 373,595.40

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Solution

The fourth proportional to 679,513.83, 937,729.68 and 373,595.40 is: 515,561.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    679,513.83 : 937,729.68 = 373,595.40 : x
  2. Step 2: Convert to fraction form
    679,513.83/937,729.68 = 373,595.40/x
  3. Step 3: Cross multiply
    679,513.83x = 937,729.68 × 373,595.40
  4. Step 4: Simplify right side
    679,513.83x = 350,331,494,891.47
  5. Step 5: Solve for x
    x = 350,331,494,891.47/679,513.83
  6. Step 6: Final answer
    x = 515,561.98

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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.