Home / 709,438.06-1,062,254.40-442,667.80

Finding the Fourth Proportional to 709,438.06, 1,062,254.40 and 442,667.80

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Solution

The fourth proportional to 709,438.06, 1,062,254.40 and 442,667.80 is: 662,814.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    709,438.06 : 1,062,254.40 = 442,667.80 : x
  2. Step 2: Convert to fraction form
    709,438.06/1,062,254.40 = 442,667.80/x
  3. Step 3: Cross multiply
    709,438.06x = 1,062,254.40 × 442,667.80
  4. Step 4: Simplify right side
    709,438.06x = 470,225,818,288.32
  5. Step 5: Solve for x
    x = 470,225,818,288.32/709,438.06
  6. Step 6: Final answer
    x = 662,814.48

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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.