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Finding the Fourth Proportional to 564,274.40, 778,698.67 and 322,562.36

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Solution

The fourth proportional to 564,274.40, 778,698.67 and 322,562.36 is: 445,136.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    564,274.40 : 778,698.67 = 322,562.36 : x
  2. Step 2: Convert to fraction form
    564,274.40/778,698.67 = 322,562.36/x
  3. Step 3: Cross multiply
    564,274.40x = 778,698.67 × 322,562.36
  4. Step 4: Simplify right side
    564,274.40x = 251,178,881,864.40
  5. Step 5: Solve for x
    x = 251,178,881,864.40/564,274.40
  6. Step 6: Final answer
    x = 445,136.06

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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.