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Finding the Fourth Proportional to 583,807.91, 805,654.55 and 315,535.91

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Solution

The fourth proportional to 583,807.91, 805,654.55 and 315,535.91 is: 435,439.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    583,807.91 : 805,654.55 = 315,535.91 : x
  2. Step 2: Convert to fraction form
    583,807.91/805,654.55 = 315,535.91/x
  3. Step 3: Cross multiply
    583,807.91x = 805,654.55 × 315,535.91
  4. Step 4: Simplify right side
    583,807.91x = 254,212,935,973.94
  5. Step 5: Solve for x
    x = 254,212,935,973.94/583,807.91
  6. Step 6: Final answer
    x = 435,439.35

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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.