Home / 487,813.44-731,938.32-310,274.40

Finding the Fourth Proportional to 487,813.44, 731,938.32 and 310,274.40

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Solution

The fourth proportional to 487,813.44, 731,938.32 and 310,274.40 is: 465,550.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    487,813.44 : 731,938.32 = 310,274.40 : x
  2. Step 2: Convert to fraction form
    487,813.44/731,938.32 = 310,274.40/x
  3. Step 3: Cross multiply
    487,813.44x = 731,938.32 × 310,274.40
  4. Step 4: Simplify right side
    487,813.44x = 227,101,723,075.01
  5. Step 5: Solve for x
    x = 227,101,723,075.01/487,813.44
  6. Step 6: Final answer
    x = 465,550.36

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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.