Home / 877,068.78-1,315,492.20-278,035.71

Finding the Fourth Proportional to 877,068.78, 1,315,492.20 and 278,035.71

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Solution

The fourth proportional to 877,068.78, 1,315,492.20 and 278,035.71 is: 417,018.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    877,068.78 : 1,315,492.20 = 278,035.71 : x
  2. Step 2: Convert to fraction form
    877,068.78/1,315,492.20 = 278,035.71/x
  3. Step 3: Cross multiply
    877,068.78x = 1,315,492.20 × 278,035.71
  4. Step 4: Simplify right side
    877,068.78x = 365,753,807,826.46
  5. Step 5: Solve for x
    x = 365,753,807,826.46/877,068.78
  6. Step 6: Final answer
    x = 417,018.39

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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.