Home / 1,282,728.48-1,770,153.90-766,454.34

Finding the Fourth Proportional to 1,282,728.48, 1,770,153.90 and 766,454.34

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Solution

The fourth proportional to 1,282,728.48, 1,770,153.90 and 766,454.34 is: 1,057,700.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,282,728.48 : 1,770,153.90 = 766,454.34 : x
  2. Step 2: Convert to fraction form
    1,282,728.48/1,770,153.90 = 766,454.34/x
  3. Step 3: Cross multiply
    1,282,728.48x = 1,770,153.90 × 766,454.34
  4. Step 4: Simplify right side
    1,282,728.48x = 1,356,742,139,122.93
  5. Step 5: Solve for x
    x = 1,356,742,139,122.93/1,282,728.48
  6. Step 6: Final answer
    x = 1,057,700.18

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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.