Home / 439,426.13-606,472.76-278,296.16

Finding the Fourth Proportional to 439,426.13, 606,472.76 and 278,296.16

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Solution

The fourth proportional to 439,426.13, 606,472.76 and 278,296.16 is: 384,089.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,426.13 : 606,472.76 = 278,296.16 : x
  2. Step 2: Convert to fraction form
    439,426.13/606,472.76 = 278,296.16/x
  3. Step 3: Cross multiply
    439,426.13x = 606,472.76 × 278,296.16
  4. Step 4: Simplify right side
    439,426.13x = 168,779,037,915.98
  5. Step 5: Solve for x
    x = 168,779,037,915.98/439,426.13
  6. Step 6: Final answer
    x = 384,089.68

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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.