Home / 890,431.17-1,335,632.50-283,210.72

Finding the Fourth Proportional to 890,431.17, 1,335,632.50 and 283,210.72

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Solution

The fourth proportional to 890,431.17, 1,335,632.50 and 283,210.72 is: 424,811.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    890,431.17 : 1,335,632.50 = 283,210.72 : x
  2. Step 2: Convert to fraction form
    890,431.17/1,335,632.50 = 283,210.72/x
  3. Step 3: Cross multiply
    890,431.17x = 1,335,632.50 × 283,210.72
  4. Step 4: Simplify right side
    890,431.17x = 378,265,441,980.40
  5. Step 5: Solve for x
    x = 378,265,441,980.40/890,431.17
  6. Step 6: Final answer
    x = 424,811.55

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1.5x scale

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.