Home / 1,242,912.60-1,864,368.90-710,487.45

Finding the Fourth Proportional to 1,242,912.60, 1,864,368.90 and 710,487.45

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Solution

The fourth proportional to 1,242,912.60, 1,864,368.90 and 710,487.45 is: 1,065,731.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,242,912.60 : 1,864,368.90 = 710,487.45 : x
  2. Step 2: Convert to fraction form
    1,242,912.60/1,864,368.90 = 710,487.45/x
  3. Step 3: Cross multiply
    1,242,912.60x = 1,864,368.90 × 710,487.45
  4. Step 4: Simplify right side
    1,242,912.60x = 1,324,610,705,620.31
  5. Step 5: Solve for x
    x = 1,324,610,705,620.31/1,242,912.60
  6. Step 6: Final answer
    x = 1,065,731.18

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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.