Home / 784,622.70-1,176,642.45-311,210.10

Finding the Fourth Proportional to 784,622.70, 1,176,642.45 and 311,210.10

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Solution

The fourth proportional to 784,622.70, 1,176,642.45 and 311,210.10 is: 466,699.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    784,622.70 : 1,176,642.45 = 311,210.10 : x
  2. Step 2: Convert to fraction form
    784,622.70/1,176,642.45 = 311,210.10/x
  3. Step 3: Cross multiply
    784,622.70x = 1,176,642.45 × 311,210.10
  4. Step 4: Simplify right side
    784,622.70x = 366,183,014,528.75
  5. Step 5: Solve for x
    x = 366,183,014,528.75/784,622.70
  6. Step 6: Final answer
    x = 466,699.49

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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.