Home / 487,033.20-671,670.63-305,762.02

Finding the Fourth Proportional to 487,033.20, 671,670.63 and 305,762.02

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Solution

The fourth proportional to 487,033.20, 671,670.63 and 305,762.02 is: 421,678.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    487,033.20 : 671,670.63 = 305,762.02 : x
  2. Step 2: Convert to fraction form
    487,033.20/671,670.63 = 305,762.02/x
  3. Step 3: Cross multiply
    487,033.20x = 671,670.63 × 305,762.02
  4. Step 4: Simplify right side
    487,033.20x = 205,371,366,924.30
  5. Step 5: Solve for x
    x = 205,371,366,924.30/487,033.20
  6. Step 6: Final answer
    x = 421,678.37

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.