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Finding the Fourth Proportional to 677,208.48, 934,484.88 and 375,376.80

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Solution

The fourth proportional to 677,208.48, 934,484.88 and 375,376.80 is: 517,985.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    677,208.48 : 934,484.88 = 375,376.80 : x
  2. Step 2: Convert to fraction form
    677,208.48/934,484.88 = 375,376.80/x
  3. Step 3: Cross multiply
    677,208.48x = 934,484.88 × 375,376.80
  4. Step 4: Simplify right side
    677,208.48x = 350,783,943,902.78
  5. Step 5: Solve for x
    x = 350,783,943,902.78/677,208.48
  6. Step 6: Final answer
    x = 517,985.16

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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.