Home / 988,407.09-1,482,048.90-389,043.45

Finding the Fourth Proportional to 988,407.09, 1,482,048.90 and 389,043.45

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Solution

The fourth proportional to 988,407.09, 1,482,048.90 and 389,043.45 is: 583,344.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    988,407.09 : 1,482,048.90 = 389,043.45 : x
  2. Step 2: Convert to fraction form
    988,407.09/1,482,048.90 = 389,043.45/x
  3. Step 3: Cross multiply
    988,407.09x = 1,482,048.90 × 389,043.45
  4. Step 4: Simplify right side
    988,407.09x = 576,581,417,124.71
  5. Step 5: Solve for x
    x = 576,581,417,124.71/988,407.09
  6. Step 6: Final answer
    x = 583,344.07

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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.