Home / 1,352,311.96-1,866,240.80-771,629.64

Finding the Fourth Proportional to 1,352,311.96, 1,866,240.80 and 771,629.64

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Solution

The fourth proportional to 1,352,311.96, 1,866,240.80 and 771,629.64 is: 1,064,877.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,352,311.96 : 1,866,240.80 = 771,629.64 : x
  2. Step 2: Convert to fraction form
    1,352,311.96/1,866,240.80 = 771,629.64/x
  3. Step 3: Cross multiply
    1,352,311.96x = 1,866,240.80 × 771,629.64
  4. Step 4: Simplify right side
    1,352,311.96x = 1,440,046,716,657.31
  5. Step 5: Solve for x
    x = 1,440,046,716,657.31/1,352,311.96
  6. Step 6: Final answer
    x = 1,064,877.60

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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.