Home / 688,601.70-1,032,902.55-511,454.70

Finding the Fourth Proportional to 688,601.70, 1,032,902.55 and 511,454.70

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Solution

The fourth proportional to 688,601.70, 1,032,902.55 and 511,454.70 is: 767,182.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    688,601.70 : 1,032,902.55 = 511,454.70 : x
  2. Step 2: Convert to fraction form
    688,601.70/1,032,902.55 = 511,454.70/x
  3. Step 3: Cross multiply
    688,601.70x = 1,032,902.55 × 511,454.70
  4. Step 4: Simplify right side
    688,601.70x = 528,282,863,839.49
  5. Step 5: Solve for x
    x = 528,282,863,839.49/688,601.70
  6. Step 6: Final answer
    x = 767,182.05

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1.5x scale

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.