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Finding the Fourth Proportional to 487,290.39, 730,985.72 and 183,940.06

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Solution

The fourth proportional to 487,290.39, 730,985.72 and 183,940.06 is: 275,929.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    487,290.39 : 730,985.72 = 183,940.06 : x
  2. Step 2: Convert to fraction form
    487,290.39/730,985.72 = 183,940.06/x
  3. Step 3: Cross multiply
    487,290.39x = 730,985.72 × 183,940.06
  4. Step 4: Simplify right side
    487,290.39x = 134,457,554,448.78
  5. Step 5: Solve for x
    x = 134,457,554,448.78/487,290.39
  6. Step 6: Final answer
    x = 275,929.01

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1.5x scale

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.