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Finding the Fourth Proportional to 882,670.32, 1,215,764.78 and 678,330

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Solution

The fourth proportional to 882,670.32, 1,215,764.78 and 678,330 is: 934,312.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    882,670.32 : 1,215,764.78 = 678,330 : x
  2. Step 2: Convert to fraction form
    882,670.32/1,215,764.78 = 678,330/x
  3. Step 3: Cross multiply
    882,670.32x = 1,215,764.78 × 678,330
  4. Step 4: Simplify right side
    882,670.32x = 824,689,719,825.75
  5. Step 5: Solve for x
    x = 824,689,719,825.75/882,670.32
  6. Step 6: Final answer
    x = 934,312.28

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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.