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Finding the Fourth Proportional to 666,764.02, 920,127.12 and 360,833.62

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Solution

The fourth proportional to 666,764.02, 920,127.12 and 360,833.62 is: 497,946.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    666,764.02 : 920,127.12 = 360,833.62 : x
  2. Step 2: Convert to fraction form
    666,764.02/920,127.12 = 360,833.62/x
  3. Step 3: Cross multiply
    666,764.02x = 920,127.12 × 360,833.62
  4. Step 4: Simplify right side
    666,764.02x = 332,012,799,569.77
  5. Step 5: Solve for x
    x = 332,012,799,569.77/666,764.02
  6. Step 6: Final answer
    x = 497,946.48

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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.