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Finding the Fourth Proportional to 562,662.84, 776,476.02 and 308,030.40

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Solution

The fourth proportional to 562,662.84, 776,476.02 and 308,030.40 is: 425,082.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    562,662.84 : 776,476.02 = 308,030.40 : x
  2. Step 2: Convert to fraction form
    562,662.84/776,476.02 = 308,030.40/x
  3. Step 3: Cross multiply
    562,662.84x = 776,476.02 × 308,030.40
  4. Step 4: Simplify right side
    562,662.84x = 239,178,219,031.01
  5. Step 5: Solve for x
    x = 239,178,219,031.01/562,662.84
  6. Step 6: Final answer
    x = 425,082.66

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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.