Home / 877,612.80-1,316,030.40-404,443.20

Finding the Fourth Proportional to 877,612.80, 1,316,030.40 and 404,443.20

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Solution

The fourth proportional to 877,612.80, 1,316,030.40 and 404,443.20 is: 606,485.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    877,612.80 : 1,316,030.40 = 404,443.20 : x
  2. Step 2: Convert to fraction form
    877,612.80/1,316,030.40 = 404,443.20/x
  3. Step 3: Cross multiply
    877,612.80x = 1,316,030.40 × 404,443.20
  4. Step 4: Simplify right side
    877,612.80x = 532,259,546,273.28
  5. Step 5: Solve for x
    x = 532,259,546,273.28/877,612.80
  6. Step 6: Final answer
    x = 606,485.62

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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.