Home / 768,870.06-1,061,036.46-424,729.68

Finding the Fourth Proportional to 768,870.06, 1,061,036.46 and 424,729.68

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Solution

The fourth proportional to 768,870.06, 1,061,036.46 and 424,729.68 is: 586,124.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    768,870.06 : 1,061,036.46 = 424,729.68 : x
  2. Step 2: Convert to fraction form
    768,870.06/1,061,036.46 = 424,729.68/x
  3. Step 3: Cross multiply
    768,870.06x = 1,061,036.46 × 424,729.68
  4. Step 4: Simplify right side
    768,870.06x = 450,653,676,124.13
  5. Step 5: Solve for x
    x = 450,653,676,124.13/768,870.06
  6. Step 6: Final answer
    x = 586,124.63

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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.