Home / 916,480.28-1,264,740.06-508,643.56

Finding the Fourth Proportional to 916,480.28, 1,264,740.06 and 508,643.56

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Solution

The fourth proportional to 916,480.28, 1,264,740.06 and 508,643.56 is: 701,926.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    916,480.28 : 1,264,740.06 = 508,643.56 : x
  2. Step 2: Convert to fraction form
    916,480.28/1,264,740.06 = 508,643.56/x
  3. Step 3: Cross multiply
    916,480.28x = 1,264,740.06 × 508,643.56
  4. Step 4: Simplify right side
    916,480.28x = 643,301,886,593.01
  5. Step 5: Solve for x
    x = 643,301,886,593.01/916,480.28
  6. Step 6: Final answer
    x = 701,926.60

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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.