Home / 845,038.61-1,266,672.18-312,219.80

Finding the Fourth Proportional to 845,038.61, 1,266,672.18 and 312,219.80

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Solution

The fourth proportional to 845,038.61, 1,266,672.18 and 312,219.80 is: 468,002.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    845,038.61 : 1,266,672.18 = 312,219.80 : x
  2. Step 2: Convert to fraction form
    845,038.61/1,266,672.18 = 312,219.80/x
  3. Step 3: Cross multiply
    845,038.61x = 1,266,672.18 × 312,219.80
  4. Step 4: Simplify right side
    845,038.61x = 395,480,134,705.16
  5. Step 5: Solve for x
    x = 395,480,134,705.16/845,038.61
  6. Step 6: Final answer
    x = 468,002.44

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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.