Home / 878,695.70-1,212,253.36-551,816.42

Finding the Fourth Proportional to 878,695.70, 1,212,253.36 and 551,816.42

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Solution

The fourth proportional to 878,695.70, 1,212,253.36 and 551,816.42 is: 761,288.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    878,695.70 : 1,212,253.36 = 551,816.42 : x
  2. Step 2: Convert to fraction form
    878,695.70/1,212,253.36 = 551,816.42/x
  3. Step 3: Cross multiply
    878,695.70x = 1,212,253.36 × 551,816.42
  4. Step 4: Simplify right side
    878,695.70x = 668,941,309,248.17
  5. Step 5: Solve for x
    x = 668,941,309,248.17/878,695.70
  6. Step 6: Final answer
    x = 761,288.93

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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.