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Finding the Fourth Proportional to 507,637.78, 700,451.36 and 289,746.97

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Solution

The fourth proportional to 507,637.78, 700,451.36 and 289,746.97 is: 399,800.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    507,637.78 : 700,451.36 = 289,746.97 : x
  2. Step 2: Convert to fraction form
    507,637.78/700,451.36 = 289,746.97/x
  3. Step 3: Cross multiply
    507,637.78x = 700,451.36 × 289,746.97
  4. Step 4: Simplify right side
    507,637.78x = 202,953,662,648.93
  5. Step 5: Solve for x
    x = 202,953,662,648.93/507,637.78
  6. Step 6: Final answer
    x = 399,800.15

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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.