Home / 1,015,808.72-1,401,721.80-563,061.20

Finding the Fourth Proportional to 1,015,808.72, 1,401,721.80 and 563,061.20

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Solution

The fourth proportional to 1,015,808.72, 1,401,721.80 and 563,061.20 is: 776,972.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,015,808.72 : 1,401,721.80 = 563,061.20 : x
  2. Step 2: Convert to fraction form
    1,015,808.72/1,401,721.80 = 563,061.20/x
  3. Step 3: Cross multiply
    1,015,808.72x = 1,401,721.80 × 563,061.20
  4. Step 4: Simplify right side
    1,015,808.72x = 789,255,158,774.16
  5. Step 5: Solve for x
    x = 789,255,158,774.16/1,015,808.72
  6. Step 6: Final answer
    x = 776,972.22

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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.