Home / 877,985.28-1,316,073.96-345,290.40

Finding the Fourth Proportional to 877,985.28, 1,316,073.96 and 345,290.40

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Solution

The fourth proportional to 877,985.28, 1,316,073.96 and 345,290.40 is: 517,580.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    877,985.28 : 1,316,073.96 = 345,290.40 : x
  2. Step 2: Convert to fraction form
    877,985.28/1,316,073.96 = 345,290.40/x
  3. Step 3: Cross multiply
    877,985.28x = 1,316,073.96 × 345,290.40
  4. Step 4: Simplify right side
    877,985.28x = 454,427,704,077.98
  5. Step 5: Solve for x
    x = 454,427,704,077.98/877,985.28
  6. Step 6: Final answer
    x = 517,580.09

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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.