Home / 900,839.10-1,243,035.39-538,186.14

Finding the Fourth Proportional to 900,839.10, 1,243,035.39 and 538,186.14

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Solution

The fourth proportional to 900,839.10, 1,243,035.39 and 538,186.14 is: 742,623.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    900,839.10 : 1,243,035.39 = 538,186.14 : x
  2. Step 2: Convert to fraction form
    900,839.10/1,243,035.39 = 538,186.14/x
  3. Step 3: Cross multiply
    900,839.10x = 1,243,035.39 × 538,186.14
  4. Step 4: Simplify right side
    900,839.10x = 668,984,418,427.50
  5. Step 5: Solve for x
    x = 668,984,418,427.50/900,839.10
  6. Step 6: Final answer
    x = 742,623.65

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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.