Home / 816,565.25-1,225,096.95-417,486.20

Finding the Fourth Proportional to 816,565.25, 1,225,096.95 and 417,486.20

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Solution

The fourth proportional to 816,565.25, 1,225,096.95 and 417,486.20 is: 626,356.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    816,565.25 : 1,225,096.95 = 417,486.20 : x
  2. Step 2: Convert to fraction form
    816,565.25/1,225,096.95 = 417,486.20/x
  3. Step 3: Cross multiply
    816,565.25x = 1,225,096.95 × 417,486.20
  4. Step 4: Simplify right side
    816,565.25x = 511,461,072,618.35
  5. Step 5: Solve for x
    x = 511,461,072,618.35/816,565.25
  6. Step 6: Final answer
    x = 626,356.65

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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.