Home / 314,865.80-472,298.70-311,913.35

Finding the Fourth Proportional to 314,865.80, 472,298.70 and 311,913.35

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Solution

The fourth proportional to 314,865.80, 472,298.70 and 311,913.35 is: 467,870.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    314,865.80 : 472,298.70 = 311,913.35 : x
  2. Step 2: Convert to fraction form
    314,865.80/472,298.70 = 311,913.35/x
  3. Step 3: Cross multiply
    314,865.80x = 472,298.70 × 311,913.35
  4. Step 4: Simplify right side
    314,865.80x = 147,316,269,717.65
  5. Step 5: Solve for x
    x = 147,316,269,717.65/314,865.80
  6. Step 6: Final answer
    x = 467,870.03

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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.