Home / 822,123.84-1,134,675.30-478,066.20

Finding the Fourth Proportional to 822,123.84, 1,134,675.30 and 478,066.20

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Solution

The fourth proportional to 822,123.84, 1,134,675.30 and 478,066.20 is: 659,815.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    822,123.84 : 1,134,675.30 = 478,066.20 : x
  2. Step 2: Convert to fraction form
    822,123.84/1,134,675.30 = 478,066.20/x
  3. Step 3: Cross multiply
    822,123.84x = 1,134,675.30 × 478,066.20
  4. Step 4: Simplify right side
    822,123.84x = 542,449,908,904.86
  5. Step 5: Solve for x
    x = 542,449,908,904.86/822,123.84
  6. Step 6: Final answer
    x = 659,815.33

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Double scale
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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.