Home / 875,564.11-1,208,189.91-646,246.63

Finding the Fourth Proportional to 875,564.11, 1,208,189.91 and 646,246.63

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Solution

The fourth proportional to 875,564.11, 1,208,189.91 and 646,246.63 is: 891,754.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    875,564.11 : 1,208,189.91 = 646,246.63 : x
  2. Step 2: Convert to fraction form
    875,564.11/1,208,189.91 = 646,246.63/x
  3. Step 3: Cross multiply
    875,564.11x = 1,208,189.91 × 646,246.63
  4. Step 4: Simplify right side
    875,564.11x = 780,788,657,737.50
  5. Step 5: Solve for x
    x = 780,788,657,737.50/875,564.11
  6. Step 6: Final answer
    x = 891,754.98

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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.