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Finding the Fourth Proportional to 679,422.58, 937,614.71 and 373,511.70

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Solution

The fourth proportional to 679,422.58, 937,614.71 and 373,511.70 is: 515,452.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    679,422.58 : 937,614.71 = 373,511.70 : x
  2. Step 2: Convert to fraction form
    679,422.58/937,614.71 = 373,511.70/x
  3. Step 3: Cross multiply
    679,422.58x = 937,614.71 × 373,511.70
  4. Step 4: Simplify right side
    679,422.58x = 350,210,065,210.89
  5. Step 5: Solve for x
    x = 350,210,065,210.89/679,422.58
  6. Step 6: Final answer
    x = 515,452.50

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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.