Home / 909,345.78-1,255,003.74-546,951.78

Finding the Fourth Proportional to 909,345.78, 1,255,003.74 and 546,951.78

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Solution

The fourth proportional to 909,345.78, 1,255,003.74 and 546,951.78 is: 754,857.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    909,345.78 : 1,255,003.74 = 546,951.78 : x
  2. Step 2: Convert to fraction form
    909,345.78/1,255,003.74 = 546,951.78/x
  3. Step 3: Cross multiply
    909,345.78x = 1,255,003.74 × 546,951.78
  4. Step 4: Simplify right side
    909,345.78x = 686,426,529,499.66
  5. Step 5: Solve for x
    x = 686,426,529,499.66/909,345.78
  6. Step 6: Final answer
    x = 754,857.55

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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.