Home / 1,263,915.60-1,896,132.60-423,070.80

Finding the Fourth Proportional to 1,263,915.60, 1,896,132.60 and 423,070.80

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Solution

The fourth proportional to 1,263,915.60, 1,896,132.60 and 423,070.80 is: 634,692.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,263,915.60 : 1,896,132.60 = 423,070.80 : x
  2. Step 2: Convert to fraction form
    1,263,915.60/1,896,132.60 = 423,070.80/x
  3. Step 3: Cross multiply
    1,263,915.60x = 1,896,132.60 × 423,070.80
  4. Step 4: Simplify right side
    1,263,915.60x = 802,198,335,988.08
  5. Step 5: Solve for x
    x = 802,198,335,988.08/1,263,915.60
  6. Step 6: Final answer
    x = 634,692.96

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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.