Home / 877,568.86-1,316,839.02-428,293.45

Finding the Fourth Proportional to 877,568.86, 1,316,839.02 and 428,293.45

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Solution

The fourth proportional to 877,568.86, 1,316,839.02 and 428,293.45 is: 642,677.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    877,568.86 : 1,316,839.02 = 428,293.45 : x
  2. Step 2: Convert to fraction form
    877,568.86/1,316,839.02 = 428,293.45/x
  3. Step 3: Cross multiply
    877,568.86x = 1,316,839.02 × 428,293.45
  4. Step 4: Simplify right side
    877,568.86x = 563,993,523,678.32
  5. Step 5: Solve for x
    x = 563,993,523,678.32/877,568.86
  6. Step 6: Final answer
    x = 642,677.23

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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.