Home / 561,287.04-774,566.40-306,631.68

Finding the Fourth Proportional to 561,287.04, 774,566.40 and 306,631.68

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Solution

The fourth proportional to 561,287.04, 774,566.40 and 306,631.68 is: 423,146.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    561,287.04 : 774,566.40 = 306,631.68 : x
  2. Step 2: Convert to fraction form
    561,287.04/774,566.40 = 306,631.68/x
  3. Step 3: Cross multiply
    561,287.04x = 774,566.40 × 306,631.68
  4. Step 4: Simplify right side
    561,287.04x = 237,506,596,503.55
  5. Step 5: Solve for x
    x = 237,506,596,503.55/561,287.04
  6. Step 6: Final answer
    x = 423,146.41

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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.