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Finding the Fourth Proportional to 902,852.16, 1,245,888 and 520,856.16

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Solution

The fourth proportional to 902,852.16, 1,245,888 and 520,856.16 is: 718,753.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    902,852.16 : 1,245,888 = 520,856.16 : x
  2. Step 2: Convert to fraction form
    902,852.16/1,245,888 = 520,856.16/x
  3. Step 3: Cross multiply
    902,852.16x = 1,245,888 × 520,856.16
  4. Step 4: Simplify right side
    902,852.16x = 648,928,439,470.08
  5. Step 5: Solve for x
    x = 648,928,439,470.08/902,852.16
  6. Step 6: Final answer
    x = 718,753.82

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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.