Home / 770,846.09-1,155,870.71-338,386.55

Finding the Fourth Proportional to 770,846.09, 1,155,870.71 and 338,386.55

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Solution

The fourth proportional to 770,846.09, 1,155,870.71 and 338,386.55 is: 507,404.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    770,846.09 : 1,155,870.71 = 338,386.55 : x
  2. Step 2: Convert to fraction form
    770,846.09/1,155,870.71 = 338,386.55/x
  3. Step 3: Cross multiply
    770,846.09x = 1,155,870.71 × 338,386.55
  4. Step 4: Simplify right side
    770,846.09x = 391,131,094,331.66
  5. Step 5: Solve for x
    x = 391,131,094,331.66/770,846.09
  6. Step 6: Final answer
    x = 507,404.92

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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.