Home / 890,140.32-1,335,551.76-535,405.68

Finding the Fourth Proportional to 890,140.32, 1,335,551.76 and 535,405.68

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Solution

The fourth proportional to 890,140.32, 1,335,551.76 and 535,405.68 is: 803,313.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    890,140.32 : 1,335,551.76 = 535,405.68 : x
  2. Step 2: Convert to fraction form
    890,140.32/1,335,551.76 = 535,405.68/x
  3. Step 3: Cross multiply
    890,140.32x = 1,335,551.76 × 535,405.68
  4. Step 4: Simplify right side
    890,140.32x = 715,061,998,238.00
  5. Step 5: Solve for x
    x = 715,061,998,238.00/890,140.32
  6. Step 6: Final answer
    x = 803,313.79

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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.