Home / 1,223,638.16-1,688,776.35-740,206.76

Finding the Fourth Proportional to 1,223,638.16, 1,688,776.35 and 740,206.76

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Solution

The fourth proportional to 1,223,638.16, 1,688,776.35 and 740,206.76 is: 1,021,579.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,223,638.16 : 1,688,776.35 = 740,206.76 : x
  2. Step 2: Convert to fraction form
    1,223,638.16/1,688,776.35 = 740,206.76/x
  3. Step 3: Cross multiply
    1,223,638.16x = 1,688,776.35 × 740,206.76
  4. Step 4: Simplify right side
    1,223,638.16x = 1,250,043,661,954.24
  5. Step 5: Solve for x
    x = 1,250,043,661,954.24/1,223,638.16
  6. Step 6: Final answer
    x = 1,021,579.51

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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.