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Finding the Fourth Proportional to 583,307.60, 804,964.32 and 315,035.60

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Solution

The fourth proportional to 583,307.60, 804,964.32 and 315,035.60 is: 434,749.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    583,307.60 : 804,964.32 = 315,035.60 : x
  2. Step 2: Convert to fraction form
    583,307.60/804,964.32 = 315,035.60/x
  3. Step 3: Cross multiply
    583,307.60x = 804,964.32 × 315,035.60
  4. Step 4: Simplify right side
    583,307.60x = 253,592,417,529.79
  5. Step 5: Solve for x
    x = 253,592,417,529.79/583,307.60
  6. Step 6: Final answer
    x = 434,749.04

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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.