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Finding the Fourth Proportional to 547,602.40, 821,326.80 and 173,663.20

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Solution

The fourth proportional to 547,602.40, 821,326.80 and 173,663.20 is: 260,470.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    547,602.40 : 821,326.80 = 173,663.20 : x
  2. Step 2: Convert to fraction form
    547,602.40/821,326.80 = 173,663.20/x
  3. Step 3: Cross multiply
    547,602.40x = 821,326.80 × 173,663.20
  4. Step 4: Simplify right side
    547,602.40x = 142,634,240,333.76
  5. Step 5: Solve for x
    x = 142,634,240,333.76/547,602.40
  6. Step 6: Final answer
    x = 260,470.44

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.