Home / 916,721.77-1,265,056.98-508,799.68

Finding the Fourth Proportional to 916,721.77, 1,265,056.98 and 508,799.68

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Solution

The fourth proportional to 916,721.77, 1,265,056.98 and 508,799.68 is: 702,132.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    916,721.77 : 1,265,056.98 = 508,799.68 : x
  2. Step 2: Convert to fraction form
    916,721.77/1,265,056.98 = 508,799.68/x
  3. Step 3: Cross multiply
    916,721.77x = 1,265,056.98 × 508,799.68
  4. Step 4: Simplify right side
    916,721.77x = 643,660,586,605.77
  5. Step 5: Solve for x
    x = 643,660,586,605.77/916,721.77
  6. Step 6: Final answer
    x = 702,132.98

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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.