Home / 911,312.65-1,365,471.20-311,946.85

Finding the Fourth Proportional to 911,312.65, 1,365,471.20 and 311,946.85

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Solution

The fourth proportional to 911,312.65, 1,365,471.20 and 311,946.85 is: 467,407.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    911,312.65 : 1,365,471.20 = 311,946.85 : x
  2. Step 2: Convert to fraction form
    911,312.65/1,365,471.20 = 311,946.85/x
  3. Step 3: Cross multiply
    911,312.65x = 1,365,471.20 × 311,946.85
  4. Step 4: Simplify right side
    911,312.65x = 425,954,434,411.65
  5. Step 5: Solve for x
    x = 425,954,434,411.65/911,312.65
  6. Step 6: Final answer
    x = 467,407.57

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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.