Home / 691,980.60-1,037,607.48-312,574.44

Finding the Fourth Proportional to 691,980.60, 1,037,607.48 and 312,574.44

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Solution

The fourth proportional to 691,980.60, 1,037,607.48 and 312,574.44 is: 468,697.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    691,980.60 : 1,037,607.48 = 312,574.44 : x
  2. Step 2: Convert to fraction form
    691,980.60/1,037,607.48 = 312,574.44/x
  3. Step 3: Cross multiply
    691,980.60x = 1,037,607.48 × 312,574.44
  4. Step 4: Simplify right side
    691,980.60x = 324,329,577,000.81
  5. Step 5: Solve for x
    x = 324,329,577,000.81/691,980.60
  6. Step 6: Final answer
    x = 468,697.50

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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.