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Finding the Fourth Proportional to 507,649.93, 700,468.08 and 289,759.12

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Solution

The fourth proportional to 507,649.93, 700,468.08 and 289,759.12 is: 399,816.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    507,649.93 : 700,468.08 = 289,759.12 : x
  2. Step 2: Convert to fraction form
    507,649.93/700,468.08 = 289,759.12/x
  3. Step 3: Cross multiply
    507,649.93x = 700,468.08 × 289,759.12
  4. Step 4: Simplify right side
    507,649.93x = 202,967,014,448.89
  5. Step 5: Solve for x
    x = 202,967,014,448.89/507,649.93
  6. Step 6: Final answer
    x = 399,816.89

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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.