Home / 917,362.11-1,266,001.74-509,465.76

Finding the Fourth Proportional to 917,362.11, 1,266,001.74 and 509,465.76

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Solution

The fourth proportional to 917,362.11, 1,266,001.74 and 509,465.76 is: 703,086.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    917,362.11 : 1,266,001.74 = 509,465.76 : x
  2. Step 2: Convert to fraction form
    917,362.11/1,266,001.74 = 509,465.76/x
  3. Step 3: Cross multiply
    917,362.11x = 1,266,001.74 × 509,465.76
  4. Step 4: Simplify right side
    917,362.11x = 644,984,538,630.42
  5. Step 5: Solve for x
    x = 644,984,538,630.42/917,362.11
  6. Step 6: Final answer
    x = 703,086.09

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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.