Home / 497,705.03-686,803.34-282,815.27

Finding the Fourth Proportional to 497,705.03, 686,803.34 and 282,815.27

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Solution

The fourth proportional to 497,705.03, 686,803.34 and 282,815.27 is: 390,268.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    497,705.03 : 686,803.34 = 282,815.27 : x
  2. Step 2: Convert to fraction form
    497,705.03/686,803.34 = 282,815.27/x
  3. Step 3: Cross multiply
    497,705.03x = 686,803.34 × 282,815.27
  4. Step 4: Simplify right side
    497,705.03x = 194,238,469,312.02
  5. Step 5: Solve for x
    x = 194,238,469,312.02/497,705.03
  6. Step 6: Final answer
    x = 390,268.25

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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.