Home / 2,255,774.33-3,112,969.28-1,223,281.81

Finding the Fourth Proportional to 2,255,774.33, 3,112,969.28 and 1,223,281.81

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Solution

The fourth proportional to 2,255,774.33, 3,112,969.28 and 1,223,281.81 is: 1,688,129.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,255,774.33 : 3,112,969.28 = 1,223,281.81 : x
  2. Step 2: Convert to fraction form
    2,255,774.33/3,112,969.28 = 1,223,281.81/x
  3. Step 3: Cross multiply
    2,255,774.33x = 3,112,969.28 × 1,223,281.81
  4. Step 4: Simplify right side
    2,255,774.33x = 3,808,038,695,312.80
  5. Step 5: Solve for x
    x = 3,808,038,695,312.80/2,255,774.33
  6. Step 6: Final answer
    x = 1,688,129.28

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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.