Home / 781,769.64-1,078,894.26-437,636.10

Finding the Fourth Proportional to 781,769.64, 1,078,894.26 and 437,636.10

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Solution

The fourth proportional to 781,769.64, 1,078,894.26 and 437,636.10 is: 603,967.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    781,769.64 : 1,078,894.26 = 437,636.10 : x
  2. Step 2: Convert to fraction form
    781,769.64/1,078,894.26 = 437,636.10/x
  3. Step 3: Cross multiply
    781,769.64x = 1,078,894.26 × 437,636.10
  4. Step 4: Simplify right side
    781,769.64x = 472,163,076,258.79
  5. Step 5: Solve for x
    x = 472,163,076,258.79/781,769.64
  6. Step 6: Final answer
    x = 603,967.02

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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.