Home / 583,981.50-805,895.28-315,709.50

Finding the Fourth Proportional to 583,981.50, 805,895.28 and 315,709.50

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Solution

The fourth proportional to 583,981.50, 805,895.28 and 315,709.50 is: 435,679.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    583,981.50 : 805,895.28 = 315,709.50 : x
  2. Step 2: Convert to fraction form
    583,981.50/805,895.28 = 315,709.50/x
  3. Step 3: Cross multiply
    583,981.50x = 805,895.28 × 315,709.50
  4. Step 4: Simplify right side
    583,981.50x = 254,428,795,901.16
  5. Step 5: Solve for x
    x = 254,428,795,901.16/583,981.50
  6. Step 6: Final answer
    x = 435,679.55

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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.