Home / 1,220,159.30-1,683,920.64-676,465.63

Finding the Fourth Proportional to 1,220,159.30, 1,683,920.64 and 676,465.63

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Solution

The fourth proportional to 1,220,159.30, 1,683,920.64 and 676,465.63 is: 933,578.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,220,159.30 : 1,683,920.64 = 676,465.63 : x
  2. Step 2: Convert to fraction form
    1,220,159.30/1,683,920.64 = 676,465.63/x
  3. Step 3: Cross multiply
    1,220,159.30x = 1,683,920.64 × 676,465.63
  4. Step 4: Simplify right side
    1,220,159.30x = 1,139,114,434,934.55
  5. Step 5: Solve for x
    x = 1,139,114,434,934.55/1,220,159.30
  6. Step 6: Final answer
    x = 933,578.46

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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.