Home / 1,454,289.30-2,181,543.30-389,307.78

Finding the Fourth Proportional to 1,454,289.30, 2,181,543.30 and 389,307.78

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Solution

The fourth proportional to 1,454,289.30, 2,181,543.30 and 389,307.78 is: 583,990.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,454,289.30 : 2,181,543.30 = 389,307.78 : x
  2. Step 2: Convert to fraction form
    1,454,289.30/2,181,543.30 = 389,307.78/x
  3. Step 3: Cross multiply
    1,454,289.30x = 2,181,543.30 × 389,307.78
  4. Step 4: Simplify right side
    1,454,289.30x = 849,291,779,096.87
  5. Step 5: Solve for x
    x = 849,291,779,096.87/1,454,289.30
  6. Step 6: Final answer
    x = 583,990.94

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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.