Home / 877,663.89-1,316,541.42-278,671.95

Finding the Fourth Proportional to 877,663.89, 1,316,541.42 and 278,671.95

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Solution

The fourth proportional to 877,663.89, 1,316,541.42 and 278,671.95 is: 418,022.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    877,663.89 : 1,316,541.42 = 278,671.95 : x
  2. Step 2: Convert to fraction form
    877,663.89/1,316,541.42 = 278,671.95/x
  3. Step 3: Cross multiply
    877,663.89x = 1,316,541.42 × 278,671.95
  4. Step 4: Simplify right side
    877,663.89x = 366,883,164,767.17
  5. Step 5: Solve for x
    x = 366,883,164,767.17/877,663.89
  6. Step 6: Final answer
    x = 418,022.40

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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.