Home / 1,285,402.32-1,773,824.40-712,430.16

Finding the Fourth Proportional to 1,285,402.32, 1,773,824.40 and 712,430.16

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Solution

The fourth proportional to 1,285,402.32, 1,773,824.40 and 712,430.16 is: 983,136.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,285,402.32 : 1,773,824.40 = 712,430.16 : x
  2. Step 2: Convert to fraction form
    1,285,402.32/1,773,824.40 = 712,430.16/x
  3. Step 3: Cross multiply
    1,285,402.32x = 1,773,824.40 × 712,430.16
  4. Step 4: Simplify right side
    1,285,402.32x = 1,263,726,001,103.90
  5. Step 5: Solve for x
    x = 1,263,726,001,103.90/1,285,402.32
  6. Step 6: Final answer
    x = 983,136.55

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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.