Home / 877,772.16-1,316,703.60-278,780.40

Finding the Fourth Proportional to 877,772.16, 1,316,703.60 and 278,780.40

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Solution

The fourth proportional to 877,772.16, 1,316,703.60 and 278,780.40 is: 418,185.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    877,772.16 : 1,316,703.60 = 278,780.40 : x
  2. Step 2: Convert to fraction form
    877,772.16/1,316,703.60 = 278,780.40/x
  3. Step 3: Cross multiply
    877,772.16x = 1,316,703.60 × 278,780.40
  4. Step 4: Simplify right side
    877,772.16x = 367,071,156,289.44
  5. Step 5: Solve for x
    x = 367,071,156,289.44/877,772.16
  6. Step 6: Final answer
    x = 418,185.01

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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.