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Finding the Fourth Proportional to 583,703.60, 805,509.24 and 315,431.60

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Solution

The fourth proportional to 583,703.60, 805,509.24 and 315,431.60 is: 435,294.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    583,703.60 : 805,509.24 = 315,431.60 : x
  2. Step 2: Convert to fraction form
    583,703.60/805,509.24 = 315,431.60/x
  3. Step 3: Cross multiply
    583,703.60x = 805,509.24 × 315,431.60
  4. Step 4: Simplify right side
    583,703.60x = 254,083,068,387.98
  5. Step 5: Solve for x
    x = 254,083,068,387.98/583,703.60
  6. Step 6: Final answer
    x = 435,294.67

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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.