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Finding the Fourth Proportional to 507,607.91, 700,498.91 and 281,253.41

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Solution

The fourth proportional to 507,607.91, 700,498.91 and 281,253.41 is: 388,129.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    507,607.91 : 700,498.91 = 281,253.41 : x
  2. Step 2: Convert to fraction form
    507,607.91/700,498.91 = 281,253.41/x
  3. Step 3: Cross multiply
    507,607.91x = 700,498.91 × 281,253.41
  4. Step 4: Simplify right side
    507,607.91x = 197,017,704,339.42
  5. Step 5: Solve for x
    x = 197,017,704,339.42/507,607.91
  6. Step 6: Final answer
    x = 388,129.70

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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.