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Finding the Fourth Proportional to 507,927.99, 700,948.51 and 278,506.22

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Solution

The fourth proportional to 507,927.99, 700,948.51 and 278,506.22 is: 384,342.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    507,927.99 : 700,948.51 = 278,506.22 : x
  2. Step 2: Convert to fraction form
    507,927.99/700,948.51 = 278,506.22/x
  3. Step 3: Cross multiply
    507,927.99x = 700,948.51 × 278,506.22
  4. Step 4: Simplify right side
    507,927.99x = 195,218,520,990.84
  5. Step 5: Solve for x
    x = 195,218,520,990.84/507,927.99
  6. Step 6: Final answer
    x = 384,342.91

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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.