Home / 769,661.64-1,062,430.02-688,946.76

Finding the Fourth Proportional to 769,661.64, 1,062,430.02 and 688,946.76

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Solution

The fourth proportional to 769,661.64, 1,062,430.02 and 688,946.76 is: 951,012.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    769,661.64 : 1,062,430.02 = 688,946.76 : x
  2. Step 2: Convert to fraction form
    769,661.64/1,062,430.02 = 688,946.76/x
  3. Step 3: Cross multiply
    769,661.64x = 1,062,430.02 × 688,946.76
  4. Step 4: Simplify right side
    769,661.64x = 731,957,720,005.74
  5. Step 5: Solve for x
    x = 731,957,720,005.74/769,661.64
  6. Step 6: Final answer
    x = 951,012.34

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1.5x scale

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.