Home / 770,834.03-1,155,852.65-338,374.50

Finding the Fourth Proportional to 770,834.03, 1,155,852.65 and 338,374.50

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Solution

The fourth proportional to 770,834.03, 1,155,852.65 and 338,374.50 is: 507,386.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    770,834.03 : 1,155,852.65 = 338,374.50 : x
  2. Step 2: Convert to fraction form
    770,834.03/1,155,852.65 = 338,374.50/x
  3. Step 3: Cross multiply
    770,834.03x = 1,155,852.65 × 338,374.50
  4. Step 4: Simplify right side
    770,834.03x = 391,111,055,046.29
  5. Step 5: Solve for x
    x = 391,111,055,046.29/770,834.03
  6. Step 6: Final answer
    x = 507,386.86

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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.