Home / 988,377.12-1,481,547.24-389,095.20

Finding the Fourth Proportional to 988,377.12, 1,481,547.24 and 389,095.20

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Solution

The fourth proportional to 988,377.12, 1,481,547.24 and 389,095.20 is: 583,241.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    988,377.12 : 1,481,547.24 = 389,095.20 : x
  2. Step 2: Convert to fraction form
    988,377.12/1,481,547.24 = 389,095.20/x
  3. Step 3: Cross multiply
    988,377.12x = 1,481,547.24 × 389,095.20
  4. Step 4: Simplify right side
    988,377.12x = 576,462,919,657.25
  5. Step 5: Solve for x
    x = 576,462,919,657.25/988,377.12
  6. Step 6: Final answer
    x = 583,241.87

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1.5x scale

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.