Home / 877,068.28-1,315,491.45-278,035.21

Finding the Fourth Proportional to 877,068.28, 1,315,491.45 and 278,035.21

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Solution

The fourth proportional to 877,068.28, 1,315,491.45 and 278,035.21 is: 417,017.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    877,068.28 : 1,315,491.45 = 278,035.21 : x
  2. Step 2: Convert to fraction form
    877,068.28/1,315,491.45 = 278,035.21/x
  3. Step 3: Cross multiply
    877,068.28x = 1,315,491.45 × 278,035.21
  4. Step 4: Simplify right side
    877,068.28x = 365,752,941,553.96
  5. Step 5: Solve for x
    x = 365,752,941,553.96/877,068.28
  6. Step 6: Final answer
    x = 417,017.64

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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.