Home / 822,248.48-1,232,811.43-438,054.77

Finding the Fourth Proportional to 822,248.48, 1,232,811.43 and 438,054.77

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Solution

The fourth proportional to 822,248.48, 1,232,811.43 and 438,054.77 is: 656,783.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    822,248.48 : 1,232,811.43 = 438,054.77 : x
  2. Step 2: Convert to fraction form
    822,248.48/1,232,811.43 = 438,054.77/x
  3. Step 3: Cross multiply
    822,248.48x = 1,232,811.43 × 438,054.77
  4. Step 4: Simplify right side
    822,248.48x = 540,038,931,872.97
  5. Step 5: Solve for x
    x = 540,038,931,872.97/822,248.48
  6. Step 6: Final answer
    x = 656,783.13

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.