Home / 805,561.70-1,209,276.15-432,313.70

Finding the Fourth Proportional to 805,561.70, 1,209,276.15 and 432,313.70

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Solution

The fourth proportional to 805,561.70, 1,209,276.15 and 432,313.70 is: 648,971.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    805,561.70 : 1,209,276.15 = 432,313.70 : x
  2. Step 2: Convert to fraction form
    805,561.70/1,209,276.15 = 432,313.70/x
  3. Step 3: Cross multiply
    805,561.70x = 1,209,276.15 × 432,313.70
  4. Step 4: Simplify right side
    805,561.70x = 522,786,646,728.26
  5. Step 5: Solve for x
    x = 522,786,646,728.26/805,561.70
  6. Step 6: Final answer
    x = 648,971.58

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.