Home / 561,430.04-774,775.43-306,781.22

Finding the Fourth Proportional to 561,430.04, 774,775.43 and 306,781.22

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Solution

The fourth proportional to 561,430.04, 774,775.43 and 306,781.22 is: 423,359.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    561,430.04 : 774,775.43 = 306,781.22 : x
  2. Step 2: Convert to fraction form
    561,430.04/774,775.43 = 306,781.22/x
  3. Step 3: Cross multiply
    561,430.04x = 774,775.43 × 306,781.22
  4. Step 4: Simplify right side
    561,430.04x = 237,686,553,194.89
  5. Step 5: Solve for x
    x = 237,686,553,194.89/561,430.04
  6. Step 6: Final answer
    x = 423,359.17

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1.5x scale

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.