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Finding the Fourth Proportional to 540,804.36, 746,291.22 and 311,354.04

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Solution

The fourth proportional to 540,804.36, 746,291.22 and 311,354.04 is: 429,657.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    540,804.36 : 746,291.22 = 311,354.04 : x
  2. Step 2: Convert to fraction form
    540,804.36/746,291.22 = 311,354.04/x
  3. Step 3: Cross multiply
    540,804.36x = 746,291.22 × 311,354.04
  4. Step 4: Simplify right side
    540,804.36x = 232,360,786,363.53
  5. Step 5: Solve for x
    x = 232,360,786,363.53/540,804.36
  6. Step 6: Final answer
    x = 429,657.75

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1.5x scale

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.