Home / 1,220,307.39-1,683,454.64-767,847.87

Finding the Fourth Proportional to 1,220,307.39, 1,683,454.64 and 767,847.87

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Solution

The fourth proportional to 1,220,307.39, 1,683,454.64 and 767,847.87 is: 1,059,271.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,220,307.39 : 1,683,454.64 = 767,847.87 : x
  2. Step 2: Convert to fraction form
    1,220,307.39/1,683,454.64 = 767,847.87/x
  3. Step 3: Cross multiply
    1,220,307.39x = 1,683,454.64 × 767,847.87
  4. Step 4: Simplify right side
    1,220,307.39x = 1,292,637,059,565.62
  5. Step 5: Solve for x
    x = 1,292,637,059,565.62/1,220,307.39
  6. Step 6: Final answer
    x = 1,059,271.68

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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.