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Finding the Fourth Proportional to 679,245.71, 937,368.78 and 373,350.38

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Solution

The fourth proportional to 679,245.71, 937,368.78 and 373,350.38 is: 515,228.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    679,245.71 : 937,368.78 = 373,350.38 : x
  2. Step 2: Convert to fraction form
    679,245.71/937,368.78 = 373,350.38/x
  3. Step 3: Cross multiply
    679,245.71x = 937,368.78 × 373,350.38
  4. Step 4: Simplify right side
    679,245.71x = 349,966,985,526.29
  5. Step 5: Solve for x
    x = 349,966,985,526.29/679,245.71
  6. Step 6: Final answer
    x = 515,228.85

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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.