Home / 875,299.08-1,312,948.60-276,680.72

Finding the Fourth Proportional to 875,299.08, 1,312,948.60 and 276,680.72

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Solution

The fourth proportional to 875,299.08, 1,312,948.60 and 276,680.72 is: 415,021.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    875,299.08 : 1,312,948.60 = 276,680.72 : x
  2. Step 2: Convert to fraction form
    875,299.08/1,312,948.60 = 276,680.72/x
  3. Step 3: Cross multiply
    875,299.08x = 1,312,948.60 × 276,680.72
  4. Step 4: Simplify right side
    875,299.08x = 363,267,563,970.99
  5. Step 5: Solve for x
    x = 363,267,563,970.99/875,299.08
  6. Step 6: Final answer
    x = 415,021.07

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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.