Home / 909,433.32-1,363,774.65-310,442.78

Finding the Fourth Proportional to 909,433.32, 1,363,774.65 and 310,442.78

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Solution

The fourth proportional to 909,433.32, 1,363,774.65 and 310,442.78 is: 465,536.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    909,433.32 : 1,363,774.65 = 310,442.78 : x
  2. Step 2: Convert to fraction form
    909,433.32/1,363,774.65 = 310,442.78/x
  3. Step 3: Cross multiply
    909,433.32x = 1,363,774.65 × 310,442.78
  4. Step 4: Simplify right side
    909,433.32x = 423,373,985,268.44
  5. Step 5: Solve for x
    x = 423,373,985,268.44/909,433.32
  6. Step 6: Final answer
    x = 465,536.04

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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.