Home / 781,754.79-1,078,839.87-437,582.16

Finding the Fourth Proportional to 781,754.79, 1,078,839.87 and 437,582.16

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Solution

The fourth proportional to 781,754.79, 1,078,839.87 and 437,582.16 is: 603,873.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    781,754.79 : 1,078,839.87 = 437,582.16 : x
  2. Step 2: Convert to fraction form
    781,754.79/1,078,839.87 = 437,582.16/x
  3. Step 3: Cross multiply
    781,754.79x = 1,078,839.87 × 437,582.16
  4. Step 4: Simplify right side
    781,754.79x = 472,081,080,608.72
  5. Step 5: Solve for x
    x = 472,081,080,608.72/781,754.79
  6. Step 6: Final answer
    x = 603,873.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.