Home / 1,955,121.80-2,931,807.90-889,615.40

Finding the Fourth Proportional to 1,955,121.80, 2,931,807.90 and 889,615.40

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Solution

The fourth proportional to 1,955,121.80, 2,931,807.90 and 889,615.40 is: 1,334,025.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,955,121.80 : 2,931,807.90 = 889,615.40 : x
  2. Step 2: Convert to fraction form
    1,955,121.80/2,931,807.90 = 889,615.40/x
  3. Step 3: Cross multiply
    1,955,121.80x = 2,931,807.90 × 889,615.40
  4. Step 4: Simplify right side
    1,955,121.80x = 2,608,181,457,681.66
  5. Step 5: Solve for x
    x = 2,608,181,457,681.66/1,955,121.80
  6. Step 6: Final answer
    x = 1,334,025.05

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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.