Home / 1,437,420.71-2,155,664.61-477,618.57

Finding the Fourth Proportional to 1,437,420.71, 2,155,664.61 and 477,618.57

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Solution

The fourth proportional to 1,437,420.71, 2,155,664.61 and 477,618.57 is: 716,272.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,437,420.71 : 2,155,664.61 = 477,618.57 : x
  2. Step 2: Convert to fraction form
    1,437,420.71/2,155,664.61 = 477,618.57/x
  3. Step 3: Cross multiply
    1,437,420.71x = 2,155,664.61 × 477,618.57
  4. Step 4: Simplify right side
    1,437,420.71x = 1,029,585,448,427.81
  5. Step 5: Solve for x
    x = 1,029,585,448,427.81/1,437,420.71
  6. Step 6: Final answer
    x = 716,272.86

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.