Home / 1,318,712-1,819,822.56-715,100.48

Finding the Fourth Proportional to 1,318,712, 1,819,822.56 and 715,100.48

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Solution

The fourth proportional to 1,318,712, 1,819,822.56 and 715,100.48 is: 986,838.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,318,712 : 1,819,822.56 = 715,100.48 : x
  2. Step 2: Convert to fraction form
    1,318,712/1,819,822.56 = 715,100.48/x
  3. Step 3: Cross multiply
    1,318,712x = 1,819,822.56 × 715,100.48
  4. Step 4: Simplify right side
    1,318,712x = 1,301,355,986,170.83
  5. Step 5: Solve for x
    x = 1,301,355,986,170.83/1,318,712
  6. Step 6: Final answer
    x = 986,838.66

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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.