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Finding the Fourth Proportional to 507,602.65, 700,491.67 and 281,248.15

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Solution

The fourth proportional to 507,602.65, 700,491.67 and 281,248.15 is: 388,122.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    507,602.65 : 700,491.67 = 281,248.15 : x
  2. Step 2: Convert to fraction form
    507,602.65/700,491.67 = 281,248.15/x
  3. Step 3: Cross multiply
    507,602.65x = 700,491.67 × 281,248.15
  4. Step 4: Simplify right side
    507,602.65x = 197,011,985,927.99
  5. Step 5: Solve for x
    x = 197,011,985,927.99/507,602.65
  6. Step 6: Final answer
    x = 388,122.45

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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.