Home / 905,658.65-1,249,821.88-497,798.21

Finding the Fourth Proportional to 905,658.65, 1,249,821.88 and 497,798.21

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Solution

The fourth proportional to 905,658.65, 1,249,821.88 and 497,798.21 is: 686,968.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    905,658.65 : 1,249,821.88 = 497,798.21 : x
  2. Step 2: Convert to fraction form
    905,658.65/1,249,821.88 = 497,798.21/x
  3. Step 3: Cross multiply
    905,658.65x = 1,249,821.88 × 497,798.21
  4. Step 4: Simplify right side
    905,658.65x = 622,159,094,682.84
  5. Step 5: Solve for x
    x = 622,159,094,682.84/905,658.65
  6. Step 6: Final answer
    x = 686,968.64

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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.