Home / 1,428,776.84-1,971,749.43-817,029.20

Finding the Fourth Proportional to 1,428,776.84, 1,971,749.43 and 817,029.20

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Solution

The fourth proportional to 1,428,776.84, 1,971,749.43 and 817,029.20 is: 1,127,521.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,428,776.84 : 1,971,749.43 = 817,029.20 : x
  2. Step 2: Convert to fraction form
    1,428,776.84/1,971,749.43 = 817,029.20/x
  3. Step 3: Cross multiply
    1,428,776.84x = 1,971,749.43 × 817,029.20
  4. Step 4: Simplify right side
    1,428,776.84x = 1,610,976,849,534.61
  5. Step 5: Solve for x
    x = 1,610,976,849,534.61/1,428,776.84
  6. Step 6: Final answer
    x = 1,127,521.67

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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.