Home / 987,070.80-1,480,606.20-874,877.70

Finding the Fourth Proportional to 987,070.80, 1,480,606.20 and 874,877.70

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Solution

The fourth proportional to 987,070.80, 1,480,606.20 and 874,877.70 is: 1,312,316.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    987,070.80 : 1,480,606.20 = 874,877.70 : x
  2. Step 2: Convert to fraction form
    987,070.80/1,480,606.20 = 874,877.70/x
  3. Step 3: Cross multiply
    987,070.80x = 1,480,606.20 × 874,877.70
  4. Step 4: Simplify right side
    987,070.80x = 1,295,349,346,861.74
  5. Step 5: Solve for x
    x = 1,295,349,346,861.74/987,070.80
  6. Step 6: Final answer
    x = 1,312,316.55

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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.