Home / 909,889.32-1,255,651.50-501,996.12

Finding the Fourth Proportional to 909,889.32, 1,255,651.50 and 501,996.12

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Solution

The fourth proportional to 909,889.32, 1,255,651.50 and 501,996.12 is: 692,756.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    909,889.32 : 1,255,651.50 = 501,996.12 : x
  2. Step 2: Convert to fraction form
    909,889.32/1,255,651.50 = 501,996.12/x
  3. Step 3: Cross multiply
    909,889.32x = 1,255,651.50 × 501,996.12
  4. Step 4: Simplify right side
    909,889.32x = 630,332,181,072.18
  5. Step 5: Solve for x
    x = 630,332,181,072.18/909,889.32
  6. Step 6: Final answer
    x = 692,756.98

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Double scale
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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.