Home / 988,673.80-1,482,719.10-389,435.80

Finding the Fourth Proportional to 988,673.80, 1,482,719.10 and 389,435.80

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Solution

The fourth proportional to 988,673.80, 1,482,719.10 and 389,435.80 is: 584,038.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    988,673.80 : 1,482,719.10 = 389,435.80 : x
  2. Step 2: Convert to fraction form
    988,673.80/1,482,719.10 = 389,435.80/x
  3. Step 3: Cross multiply
    988,673.80x = 1,482,719.10 × 389,435.80
  4. Step 4: Simplify right side
    988,673.80x = 577,423,898,883.78
  5. Step 5: Solve for x
    x = 577,423,898,883.78/988,673.80
  6. Step 6: Final answer
    x = 584,038.84

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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.