Home / 869,490.87-1,199,670.39-501,878.04

Finding the Fourth Proportional to 869,490.87, 1,199,670.39 and 501,878.04

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Solution

The fourth proportional to 869,490.87, 1,199,670.39 and 501,878.04 is: 692,460.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    869,490.87 : 1,199,670.39 = 501,878.04 : x
  2. Step 2: Convert to fraction form
    869,490.87/1,199,670.39 = 501,878.04/x
  3. Step 3: Cross multiply
    869,490.87x = 1,199,670.39 × 501,878.04
  4. Step 4: Simplify right side
    869,490.87x = 602,088,223,979.24
  5. Step 5: Solve for x
    x = 602,088,223,979.24/869,490.87
  6. Step 6: Final answer
    x = 692,460.66

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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.