Home / 497,163.09-686,089.74-282,307.65

Finding the Fourth Proportional to 497,163.09, 686,089.74 and 282,307.65

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Solution

The fourth proportional to 497,163.09, 686,089.74 and 282,307.65 is: 389,587.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    497,163.09 : 686,089.74 = 282,307.65 : x
  2. Step 2: Convert to fraction form
    497,163.09/686,089.74 = 282,307.65/x
  3. Step 3: Cross multiply
    497,163.09x = 686,089.74 × 282,307.65
  4. Step 4: Simplify right side
    497,163.09x = 193,688,382,188.51
  5. Step 5: Solve for x
    x = 193,688,382,188.51/497,163.09
  6. Step 6: Final answer
    x = 389,587.21

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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.