Home / 889,479.52-1,334,292.78-290,427.40

Finding the Fourth Proportional to 889,479.52, 1,334,292.78 and 290,427.40

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Solution

The fourth proportional to 889,479.52, 1,334,292.78 and 290,427.40 is: 435,665.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    889,479.52 : 1,334,292.78 = 290,427.40 : x
  2. Step 2: Convert to fraction form
    889,479.52/1,334,292.78 = 290,427.40/x
  3. Step 3: Cross multiply
    889,479.52x = 1,334,292.78 × 290,427.40
  4. Step 4: Simplify right side
    889,479.52x = 387,515,182,934.17
  5. Step 5: Solve for x
    x = 387,515,182,934.17/889,479.52
  6. Step 6: Final answer
    x = 435,665.10

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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.