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Finding the Fourth Proportional to 898,399.70, 1,347,599.55 and 862,970.30

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Solution

The fourth proportional to 898,399.70, 1,347,599.55 and 862,970.30 is: 1,294,455.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    898,399.70 : 1,347,599.55 = 862,970.30 : x
  2. Step 2: Convert to fraction form
    898,399.70/1,347,599.55 = 862,970.30/x
  3. Step 3: Cross multiply
    898,399.70x = 1,347,599.55 × 862,970.30
  4. Step 4: Simplify right side
    898,399.70x = 1,162,938,387,943.37
  5. Step 5: Solve for x
    x = 1,162,938,387,943.37/898,399.70
  6. Step 6: Final answer
    x = 1,294,455.45

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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.