Home / 470,454.14-705,681.76-128,900.46

Finding the Fourth Proportional to 470,454.14, 705,681.76 and 128,900.46

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Solution

The fourth proportional to 470,454.14, 705,681.76 and 128,900.46 is: 193,350.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    470,454.14 : 705,681.76 = 128,900.46 : x
  2. Step 2: Convert to fraction form
    470,454.14/705,681.76 = 128,900.46/x
  3. Step 3: Cross multiply
    470,454.14x = 705,681.76 × 128,900.46
  4. Step 4: Simplify right side
    470,454.14x = 90,962,699,626.95
  5. Step 5: Solve for x
    x = 90,962,699,626.95/470,454.14
  6. Step 6: Final answer
    x = 193,350.83

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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.