Home / 1,276,457.81-1,915,018.88-477,801.05

Finding the Fourth Proportional to 1,276,457.81, 1,915,018.88 and 477,801.05

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Solution

The fourth proportional to 1,276,457.81, 1,915,018.88 and 477,801.05 is: 716,825.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,276,457.81 : 1,915,018.88 = 477,801.05 : x
  2. Step 2: Convert to fraction form
    1,276,457.81/1,915,018.88 = 477,801.05/x
  3. Step 3: Cross multiply
    1,276,457.81x = 1,915,018.88 × 477,801.05
  4. Step 4: Simplify right side
    1,276,457.81x = 914,998,019,669.72
  5. Step 5: Solve for x
    x = 914,998,019,669.72/1,276,457.81
  6. Step 6: Final answer
    x = 716,825.90

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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.