Home / 459,421.20-634,015-278,166.32

Finding the Fourth Proportional to 459,421.20, 634,015 and 278,166.32

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Solution

The fourth proportional to 459,421.20, 634,015 and 278,166.32 is: 383,877.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    459,421.20 : 634,015 = 278,166.32 : x
  2. Step 2: Convert to fraction form
    459,421.20/634,015 = 278,166.32/x
  3. Step 3: Cross multiply
    459,421.20x = 634,015 × 278,166.32
  4. Step 4: Simplify right side
    459,421.20x = 176,361,619,374.80
  5. Step 5: Solve for x
    x = 176,361,619,374.80/459,421.20
  6. Step 6: Final answer
    x = 383,877.84

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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.