Home / 979,975.50-1,470,341.07-381,358.74

Finding the Fourth Proportional to 979,975.50, 1,470,341.07 and 381,358.74

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Solution

The fourth proportional to 979,975.50, 1,470,341.07 and 381,358.74 is: 572,185.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    979,975.50 : 1,470,341.07 = 381,358.74 : x
  2. Step 2: Convert to fraction form
    979,975.50/1,470,341.07 = 381,358.74/x
  3. Step 3: Cross multiply
    979,975.50x = 1,470,341.07 × 381,358.74
  4. Step 4: Simplify right side
    979,975.50x = 560,727,417,825.45
  5. Step 5: Solve for x
    x = 560,727,417,825.45/979,975.50
  6. Step 6: Final answer
    x = 572,185.14

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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.