Home / 771,574.55-1,157,417.37-266,128.20

Finding the Fourth Proportional to 771,574.55, 1,157,417.37 and 266,128.20

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Solution

The fourth proportional to 771,574.55, 1,157,417.37 and 266,128.20 is: 399,211.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    771,574.55 : 1,157,417.37 = 266,128.20 : x
  2. Step 2: Convert to fraction form
    771,574.55/1,157,417.37 = 266,128.20/x
  3. Step 3: Cross multiply
    771,574.55x = 1,157,417.37 × 266,128.20
  4. Step 4: Simplify right side
    771,574.55x = 308,021,401,326.83
  5. Step 5: Solve for x
    x = 308,021,401,326.83/771,574.55
  6. Step 6: Final answer
    x = 399,211.46

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Double scale
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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.