Home / 1,215,559.20-1,824,980.40-710,637.60

Finding the Fourth Proportional to 1,215,559.20, 1,824,980.40 and 710,637.60

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Solution

The fourth proportional to 1,215,559.20, 1,824,980.40 and 710,637.60 is: 1,066,916.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,215,559.20 : 1,824,980.40 = 710,637.60 : x
  2. Step 2: Convert to fraction form
    1,215,559.20/1,824,980.40 = 710,637.60/x
  3. Step 3: Cross multiply
    1,215,559.20x = 1,824,980.40 × 710,637.60
  4. Step 4: Simplify right side
    1,215,559.20x = 1,296,899,691,503.04
  5. Step 5: Solve for x
    x = 1,296,899,691,503.04/1,215,559.20
  6. Step 6: Final answer
    x = 1,066,916.11

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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.