Home / 862,280.78-1,293,974.74-578,292.02

Finding the Fourth Proportional to 862,280.78, 1,293,974.74 and 578,292.02

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Solution

The fourth proportional to 862,280.78, 1,293,974.74 and 578,292.02 is: 867,809.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    862,280.78 : 1,293,974.74 = 578,292.02 : x
  2. Step 2: Convert to fraction form
    862,280.78/1,293,974.74 = 578,292.02/x
  3. Step 3: Cross multiply
    862,280.78x = 1,293,974.74 × 578,292.02
  4. Step 4: Simplify right side
    862,280.78x = 748,295,266,223.58
  5. Step 5: Solve for x
    x = 748,295,266,223.58/862,280.78
  6. Step 6: Final answer
    x = 867,809.28

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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.