Home / 1,490,421.06-2,057,050.28-878,538.56

Finding the Fourth Proportional to 1,490,421.06, 2,057,050.28 and 878,538.56

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Solution

The fourth proportional to 1,490,421.06, 2,057,050.28 and 878,538.56 is: 1,212,541.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,490,421.06 : 2,057,050.28 = 878,538.56 : x
  2. Step 2: Convert to fraction form
    1,490,421.06/2,057,050.28 = 878,538.56/x
  3. Step 3: Cross multiply
    1,490,421.06x = 2,057,050.28 × 878,538.56
  4. Step 4: Simplify right side
    1,490,421.06x = 1,807,197,982,749.89
  5. Step 5: Solve for x
    x = 1,807,197,982,749.89/1,490,421.06
  6. Step 6: Final answer
    x = 1,212,541.90

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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.