Home / 875,738.20-1,312,586.70-402,471.40

Finding the Fourth Proportional to 875,738.20, 1,312,586.70 and 402,471.40

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Solution

The fourth proportional to 875,738.20, 1,312,586.70 and 402,471.40 is: 603,238.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    875,738.20 : 1,312,586.70 = 402,471.40 : x
  2. Step 2: Convert to fraction form
    875,738.20/1,312,586.70 = 402,471.40/x
  3. Step 3: Cross multiply
    875,738.20x = 1,312,586.70 × 402,471.40
  4. Step 4: Simplify right side
    875,738.20x = 528,278,606,770.38
  5. Step 5: Solve for x
    x = 528,278,606,770.38/875,738.20
  6. Step 6: Final answer
    x = 603,238.05

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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.