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Finding the Fourth Proportional to 536,403.36, 740,385.60 and 307,089.12

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Solution

The fourth proportional to 536,403.36, 740,385.60 and 307,089.12 is: 423,868.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    536,403.36 : 740,385.60 = 307,089.12 : x
  2. Step 2: Convert to fraction form
    536,403.36/740,385.60 = 307,089.12/x
  3. Step 3: Cross multiply
    536,403.36x = 740,385.60 × 307,089.12
  4. Step 4: Simplify right side
    536,403.36x = 227,364,362,364.67
  5. Step 5: Solve for x
    x = 227,364,362,364.67/536,403.36
  6. Step 6: Final answer
    x = 423,868.27

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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.