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Finding the Fourth Proportional to 583,384.32, 805,070.72 and 315,112.32

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Solution

The fourth proportional to 583,384.32, 805,070.72 and 315,112.32 is: 434,855.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    583,384.32 : 805,070.72 = 315,112.32 : x
  2. Step 2: Convert to fraction form
    583,384.32/805,070.72 = 315,112.32/x
  3. Step 3: Cross multiply
    583,384.32x = 805,070.72 × 315,112.32
  4. Step 4: Simplify right side
    583,384.32x = 253,687,702,343.27
  5. Step 5: Solve for x
    x = 253,687,702,343.27/583,384.32
  6. Step 6: Final answer
    x = 434,855.20

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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.