Home / 987,343.80-1,385,430.60-987,343.80

Finding the Fourth Proportional to 987,343.80, 1,385,430.60 and 987,343.80

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Solution

The fourth proportional to 987,343.80, 1,385,430.60 and 987,343.80 is: 1,385,430.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    987,343.80 : 1,385,430.60 = 987,343.80 : x
  2. Step 2: Convert to fraction form
    987,343.80/1,385,430.60 = 987,343.80/x
  3. Step 3: Cross multiply
    987,343.80x = 1,385,430.60 × 987,343.80
  4. Step 4: Simplify right side
    987,343.80x = 1,367,896,313,240.28
  5. Step 5: Solve for x
    x = 1,367,896,313,240.28/987,343.80
  6. Step 6: Final answer
    x = 1,385,430.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.