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Finding the Fourth Proportional to 561,541.51, 774,925.41 and 306,892.63

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Solution

The fourth proportional to 561,541.51, 774,925.41 and 306,892.63 is: 423,510.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    561,541.51 : 774,925.41 = 306,892.63 : x
  2. Step 2: Convert to fraction form
    561,541.51/774,925.41 = 306,892.63/x
  3. Step 3: Cross multiply
    561,541.51x = 774,925.41 × 306,892.63
  4. Step 4: Simplify right side
    561,541.51x = 237,818,897,128.73
  5. Step 5: Solve for x
    x = 237,818,897,128.73/561,541.51
  6. Step 6: Final answer
    x = 423,510.81

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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.