Home / 1,294,861.60-1,788,037.28-812,256.32

Finding the Fourth Proportional to 1,294,861.60, 1,788,037.28 and 812,256.32

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Solution

The fourth proportional to 1,294,861.60, 1,788,037.28 and 812,256.32 is: 1,121,621.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,294,861.60 : 1,788,037.28 = 812,256.32 : x
  2. Step 2: Convert to fraction form
    1,294,861.60/1,788,037.28 = 812,256.32/x
  3. Step 3: Cross multiply
    1,294,861.60x = 1,788,037.28 × 812,256.32
  4. Step 4: Simplify right side
    1,294,861.60x = 1,452,344,581,075.61
  5. Step 5: Solve for x
    x = 1,452,344,581,075.61/1,294,861.60
  6. Step 6: Final answer
    x = 1,121,621.48

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.