Home / 708,133.74-977,625.06-490,658.46

Finding the Fourth Proportional to 708,133.74, 977,625.06 and 490,658.46

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Solution

The fourth proportional to 708,133.74, 977,625.06 and 490,658.46 is: 677,386.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    708,133.74 : 977,625.06 = 490,658.46 : x
  2. Step 2: Convert to fraction form
    708,133.74/977,625.06 = 490,658.46/x
  3. Step 3: Cross multiply
    708,133.74x = 977,625.06 × 490,658.46
  4. Step 4: Simplify right side
    708,133.74x = 479,680,006,397.01
  5. Step 5: Solve for x
    x = 479,680,006,397.01/708,133.74
  6. Step 6: Final answer
    x = 677,386.18

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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.