Home / 1,223,995.53-1,689,080.25-680,117.35

Finding the Fourth Proportional to 1,223,995.53, 1,689,080.25 and 680,117.35

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Solution

The fourth proportional to 1,223,995.53, 1,689,080.25 and 680,117.35 is: 938,543.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,223,995.53 : 1,689,080.25 = 680,117.35 : x
  2. Step 2: Convert to fraction form
    1,223,995.53/1,689,080.25 = 680,117.35/x
  3. Step 3: Cross multiply
    1,223,995.53x = 1,689,080.25 × 680,117.35
  4. Step 4: Simplify right side
    1,223,995.53x = 1,148,772,783,567.34
  5. Step 5: Solve for x
    x = 1,148,772,783,567.34/1,223,995.53
  6. Step 6: Final answer
    x = 938,543.28

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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.