Home / 858,768.30-1,288,152.45-753,792.30

Finding the Fourth Proportional to 858,768.30, 1,288,152.45 and 753,792.30

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Solution

The fourth proportional to 858,768.30, 1,288,152.45 and 753,792.30 is: 1,130,688.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    858,768.30 : 1,288,152.45 = 753,792.30 : x
  2. Step 2: Convert to fraction form
    858,768.30/1,288,152.45 = 753,792.30/x
  3. Step 3: Cross multiply
    858,768.30x = 1,288,152.45 × 753,792.30
  4. Step 4: Simplify right side
    858,768.30x = 970,999,398,036.14
  5. Step 5: Solve for x
    x = 970,999,398,036.14/858,768.30
  6. Step 6: Final answer
    x = 1,130,688.45

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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.