Home / 987,002.40-1,480,503.60-916,143.60

Finding the Fourth Proportional to 987,002.40, 1,480,503.60 and 916,143.60

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Solution

The fourth proportional to 987,002.40, 1,480,503.60 and 916,143.60 is: 1,374,215.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    987,002.40 : 1,480,503.60 = 916,143.60 : x
  2. Step 2: Convert to fraction form
    987,002.40/1,480,503.60 = 916,143.60/x
  3. Step 3: Cross multiply
    987,002.40x = 1,480,503.60 × 916,143.60
  4. Step 4: Simplify right side
    987,002.40x = 1,356,353,897,916.96
  5. Step 5: Solve for x
    x = 1,356,353,897,916.96/987,002.40
  6. Step 6: Final answer
    x = 1,374,215.40

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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.