Home / 459,411.21-634,001.18-278,156.30

Finding the Fourth Proportional to 459,411.21, 634,001.18 and 278,156.30

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Solution

The fourth proportional to 459,411.21, 634,001.18 and 278,156.30 is: 383,863.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    459,411.21 : 634,001.18 = 278,156.30 : x
  2. Step 2: Convert to fraction form
    459,411.21/634,001.18 = 278,156.30/x
  3. Step 3: Cross multiply
    459,411.21x = 634,001.18 × 278,156.30
  4. Step 4: Simplify right side
    459,411.21x = 176,351,417,863.65
  5. Step 5: Solve for x
    x = 176,351,417,863.65/459,411.21
  6. Step 6: Final answer
    x = 383,863.99

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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.