Home / 988,281.60-1,483,113.60-427,718.40

Finding the Fourth Proportional to 988,281.60, 1,483,113.60 and 427,718.40

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Solution

The fourth proportional to 988,281.60, 1,483,113.60 and 427,718.40 is: 641,876.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    988,281.60 : 1,483,113.60 = 427,718.40 : x
  2. Step 2: Convert to fraction form
    988,281.60/1,483,113.60 = 427,718.40/x
  3. Step 3: Cross multiply
    988,281.60x = 1,483,113.60 × 427,718.40
  4. Step 4: Simplify right side
    988,281.60x = 634,354,976,010.24
  5. Step 5: Solve for x
    x = 634,354,976,010.24/988,281.60
  6. Step 6: Final answer
    x = 641,876.74

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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.