Home / 991,417.64-1,487,123.40-281,446.16

Finding the Fourth Proportional to 991,417.64, 1,487,123.40 and 281,446.16

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Solution

The fourth proportional to 991,417.64, 1,487,123.40 and 281,446.16 is: 422,168.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    991,417.64 : 1,487,123.40 = 281,446.16 : x
  2. Step 2: Convert to fraction form
    991,417.64/1,487,123.40 = 281,446.16/x
  3. Step 3: Cross multiply
    991,417.64x = 1,487,123.40 × 281,446.16
  4. Step 4: Simplify right side
    991,417.64x = 418,545,170,376.14
  5. Step 5: Solve for x
    x = 418,545,170,376.14/991,417.64
  6. Step 6: Final answer
    x = 422,168.37

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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.