Home / 1,078,276.60-1,616,831.70-447,254.20

Finding the Fourth Proportional to 1,078,276.60, 1,616,831.70 and 447,254.20

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Solution

The fourth proportional to 1,078,276.60, 1,616,831.70 and 447,254.20 is: 670,639.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,078,276.60 : 1,616,831.70 = 447,254.20 : x
  2. Step 2: Convert to fraction form
    1,078,276.60/1,616,831.70 = 447,254.20/x
  3. Step 3: Cross multiply
    1,078,276.60x = 1,616,831.70 × 447,254.20
  4. Step 4: Simplify right side
    1,078,276.60x = 723,134,768,518.14
  5. Step 5: Solve for x
    x = 723,134,768,518.14/1,078,276.60
  6. Step 6: Final answer
    x = 670,639.40

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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.