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Finding the Fourth Proportional to 888,728.76, 1,226,444.36 and 480,829.23

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Solution

The fourth proportional to 888,728.76, 1,226,444.36 and 480,829.23 is: 663,543.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    888,728.76 : 1,226,444.36 = 480,829.23 : x
  2. Step 2: Convert to fraction form
    888,728.76/1,226,444.36 = 480,829.23/x
  3. Step 3: Cross multiply
    888,728.76x = 1,226,444.36 × 480,829.23
  4. Step 4: Simplify right side
    888,728.76x = 589,710,294,852.50
  5. Step 5: Solve for x
    x = 589,710,294,852.50/888,728.76
  6. Step 6: Final answer
    x = 663,543.62

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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.