Home / 877,316.56-1,316,461.44-428,041.12

Finding the Fourth Proportional to 877,316.56, 1,316,461.44 and 428,041.12

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Solution

The fourth proportional to 877,316.56, 1,316,461.44 and 428,041.12 is: 642,299.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    877,316.56 : 1,316,461.44 = 428,041.12 : x
  2. Step 2: Convert to fraction form
    877,316.56/1,316,461.44 = 428,041.12/x
  3. Step 3: Cross multiply
    877,316.56x = 1,316,461.44 × 428,041.12
  4. Step 4: Simplify right side
    877,316.56x = 563,499,629,214.41
  5. Step 5: Solve for x
    x = 563,499,629,214.41/877,316.56
  6. Step 6: Final answer
    x = 642,299.09

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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.