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Finding the Fourth Proportional to 478,875.76, 660,878.33 and 264,015.50

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Solution

The fourth proportional to 478,875.76, 660,878.33 and 264,015.50 is: 364,357.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,875.76 : 660,878.33 = 264,015.50 : x
  2. Step 2: Convert to fraction form
    478,875.76/660,878.33 = 264,015.50/x
  3. Step 3: Cross multiply
    478,875.76x = 660,878.33 × 264,015.50
  4. Step 4: Simplify right side
    478,875.76x = 174,482,118,109.65
  5. Step 5: Solve for x
    x = 174,482,118,109.65/478,875.76
  6. Step 6: Final answer
    x = 364,357.80

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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.