Home / 988,329.60-1,363,886.10-558,608.40

Finding the Fourth Proportional to 988,329.60, 1,363,886.10 and 558,608.40

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Solution

The fourth proportional to 988,329.60, 1,363,886.10 and 558,608.40 is: 770,874.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    988,329.60 : 1,363,886.10 = 558,608.40 : x
  2. Step 2: Convert to fraction form
    988,329.60/1,363,886.10 = 558,608.40/x
  3. Step 3: Cross multiply
    988,329.60x = 1,363,886.10 × 558,608.40
  4. Step 4: Simplify right side
    988,329.60x = 761,878,232,103.24
  5. Step 5: Solve for x
    x = 761,878,232,103.24/988,329.60
  6. Step 6: Final answer
    x = 770,874.65

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.