Home / 840,427.40-1,159,886.58-467,927.84

Finding the Fourth Proportional to 840,427.40, 1,159,886.58 and 467,927.84

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Solution

The fourth proportional to 840,427.40, 1,159,886.58 and 467,927.84 is: 645,794.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    840,427.40 : 1,159,886.58 = 467,927.84 : x
  2. Step 2: Convert to fraction form
    840,427.40/1,159,886.58 = 467,927.84/x
  3. Step 3: Cross multiply
    840,427.40x = 1,159,886.58 × 467,927.84
  4. Step 4: Simplify right side
    840,427.40x = 542,743,222,024.39
  5. Step 5: Solve for x
    x = 542,743,222,024.39/840,427.40
  6. Step 6: Final answer
    x = 645,794.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.