Home / 581,140.12-870,086.12-313,943.40

Finding the Fourth Proportional to 581,140.12, 870,086.12 and 313,943.40

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Solution

The fourth proportional to 581,140.12, 870,086.12 and 313,943.40 is: 470,037.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    581,140.12 : 870,086.12 = 313,943.40 : x
  2. Step 2: Convert to fraction form
    581,140.12/870,086.12 = 313,943.40/x
  3. Step 3: Cross multiply
    581,140.12x = 870,086.12 × 313,943.40
  4. Step 4: Simplify right side
    581,140.12x = 273,157,794,805.61
  5. Step 5: Solve for x
    x = 273,157,794,805.61/581,140.12
  6. Step 6: Final answer
    x = 470,037.75

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1.5x scale

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.