Home / 781,755.79-1,078,841.25-437,583.16

Finding the Fourth Proportional to 781,755.79, 1,078,841.25 and 437,583.16

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Solution

The fourth proportional to 781,755.79, 1,078,841.25 and 437,583.16 is: 603,874.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    781,755.79 : 1,078,841.25 = 437,583.16 : x
  2. Step 2: Convert to fraction form
    781,755.79/1,078,841.25 = 437,583.16/x
  3. Step 3: Cross multiply
    781,755.79x = 1,078,841.25 × 437,583.16
  4. Step 4: Simplify right side
    781,755.79x = 472,082,763,313.35
  5. Step 5: Solve for x
    x = 472,082,763,313.35/781,755.79
  6. Step 6: Final answer
    x = 603,874.98

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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.