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Finding the Fourth Proportional to 679,342.71, 937,482.42 and 373,412.52

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Solution

The fourth proportional to 679,342.71, 937,482.42 and 373,412.52 is: 515,303.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    679,342.71 : 937,482.42 = 373,412.52 : x
  2. Step 2: Convert to fraction form
    679,342.71/937,482.42 = 373,412.52/x
  3. Step 3: Cross multiply
    679,342.71x = 937,482.42 × 373,412.52
  4. Step 4: Simplify right side
    679,342.71x = 350,067,677,636.15
  5. Step 5: Solve for x
    x = 350,067,677,636.15/679,342.71
  6. Step 6: Final answer
    x = 515,303.50

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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.