Home / 816,626.75-1,225,189.36-417,547.78

Finding the Fourth Proportional to 816,626.75, 1,225,189.36 and 417,547.78

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Solution

The fourth proportional to 816,626.75, 1,225,189.36 and 417,547.78 is: 626,449.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    816,626.75 : 1,225,189.36 = 417,547.78 : x
  2. Step 2: Convert to fraction form
    816,626.75/1,225,189.36 = 417,547.78/x
  3. Step 3: Cross multiply
    816,626.75x = 1,225,189.36 × 417,547.78
  4. Step 4: Simplify right side
    816,626.75x = 511,575,094,806.58
  5. Step 5: Solve for x
    x = 511,575,094,806.58/816,626.75
  6. Step 6: Final answer
    x = 626,449.11

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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.