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Finding the Fourth Proportional to 560,471.78, 840,698.76 and 260,784.74

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Solution

The fourth proportional to 560,471.78, 840,698.76 and 260,784.74 is: 391,172.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    560,471.78 : 840,698.76 = 260,784.74 : x
  2. Step 2: Convert to fraction form
    560,471.78/840,698.76 = 260,784.74/x
  3. Step 3: Cross multiply
    560,471.78x = 840,698.76 × 260,784.74
  4. Step 4: Simplify right side
    560,471.78x = 219,241,407,544.92
  5. Step 5: Solve for x
    x = 219,241,407,544.92/560,471.78
  6. Step 6: Final answer
    x = 391,172.96

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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.