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Finding the Fourth Proportional to 559,703.51, 772,099.86 and 355,404.90

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Solution

The fourth proportional to 559,703.51, 772,099.86 and 355,404.90 is: 490,273.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    559,703.51 : 772,099.86 = 355,404.90 : x
  2. Step 2: Convert to fraction form
    559,703.51/772,099.86 = 355,404.90/x
  3. Step 3: Cross multiply
    559,703.51x = 772,099.86 × 355,404.90
  4. Step 4: Simplify right side
    559,703.51x = 274,408,073,533.31
  5. Step 5: Solve for x
    x = 274,408,073,533.31/559,703.51
  6. Step 6: Final answer
    x = 490,273.99

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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.