Home / 743,831.28-1,026,465.60-421,571.16

Finding the Fourth Proportional to 743,831.28, 1,026,465.60 and 421,571.16

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Solution

The fourth proportional to 743,831.28, 1,026,465.60 and 421,571.16 is: 581,755.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    743,831.28 : 1,026,465.60 = 421,571.16 : x
  2. Step 2: Convert to fraction form
    743,831.28/1,026,465.60 = 421,571.16/x
  3. Step 3: Cross multiply
    743,831.28x = 1,026,465.60 × 421,571.16
  4. Step 4: Simplify right side
    743,831.28x = 432,728,293,692.10
  5. Step 5: Solve for x
    x = 432,728,293,692.10/743,831.28
  6. Step 6: Final answer
    x = 581,755.98

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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.