Home / 803,780.09-1,108,711.96-476,861.64

Finding the Fourth Proportional to 803,780.09, 1,108,711.96 and 476,861.64

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Solution

The fourth proportional to 803,780.09, 1,108,711.96 and 476,861.64 is: 657,769.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    803,780.09 : 1,108,711.96 = 476,861.64 : x
  2. Step 2: Convert to fraction form
    803,780.09/1,108,711.96 = 476,861.64/x
  3. Step 3: Cross multiply
    803,780.09x = 1,108,711.96 × 476,861.64
  4. Step 4: Simplify right side
    803,780.09x = 528,702,203,533.21
  5. Step 5: Solve for x
    x = 528,702,203,533.21/803,780.09
  6. Step 6: Final answer
    x = 657,769.72

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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.