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Finding the Fourth Proportional to 583,614.56, 805,387.76 and 315,342.56

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Solution

The fourth proportional to 583,614.56, 805,387.76 and 315,342.56 is: 435,172.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    583,614.56 : 805,387.76 = 315,342.56 : x
  2. Step 2: Convert to fraction form
    583,614.56/805,387.76 = 315,342.56/x
  3. Step 3: Cross multiply
    583,614.56x = 805,387.76 × 315,342.56
  4. Step 4: Simplify right side
    583,614.56x = 253,973,038,031.07
  5. Step 5: Solve for x
    x = 253,973,038,031.07/583,614.56
  6. Step 6: Final answer
    x = 435,172.55

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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.