Home / 872,541.15-1,308,801.92-340,435.84

Finding the Fourth Proportional to 872,541.15, 1,308,801.92 and 340,435.84

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Solution

The fourth proportional to 872,541.15, 1,308,801.92 and 340,435.84 is: 510,649.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    872,541.15 : 1,308,801.92 = 340,435.84 : x
  2. Step 2: Convert to fraction form
    872,541.15/1,308,801.92 = 340,435.84/x
  3. Step 3: Cross multiply
    872,541.15x = 1,308,801.92 × 340,435.84
  4. Step 4: Simplify right side
    872,541.15x = 445,563,074,484.80
  5. Step 5: Solve for x
    x = 445,563,074,484.80/872,541.15
  6. Step 6: Final answer
    x = 510,649.93

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1.5x scale

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.