Home / 1,456,312.55-2,009,713.51-811,718.90

Finding the Fourth Proportional to 1,456,312.55, 2,009,713.51 and 811,718.90

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Solution

The fourth proportional to 1,456,312.55, 2,009,713.51 and 811,718.90 is: 1,120,173.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,456,312.55 : 2,009,713.51 = 811,718.90 : x
  2. Step 2: Convert to fraction form
    1,456,312.55/2,009,713.51 = 811,718.90/x
  3. Step 3: Cross multiply
    1,456,312.55x = 2,009,713.51 × 811,718.90
  4. Step 4: Simplify right side
    1,456,312.55x = 1,631,322,439,652.34
  5. Step 5: Solve for x
    x = 1,631,322,439,652.34/1,456,312.55
  6. Step 6: Final answer
    x = 1,120,173.30

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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.