Home / 817,422.76-1,128,032.58-459,726.76

Finding the Fourth Proportional to 817,422.76, 1,128,032.58 and 459,726.76

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Solution

The fourth proportional to 817,422.76, 1,128,032.58 and 459,726.76 is: 634,416.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    817,422.76 : 1,128,032.58 = 459,726.76 : x
  2. Step 2: Convert to fraction form
    817,422.76/1,128,032.58 = 459,726.76/x
  3. Step 3: Cross multiply
    817,422.76x = 1,128,032.58 × 459,726.76
  4. Step 4: Simplify right side
    817,422.76x = 518,586,763,177.84
  5. Step 5: Solve for x
    x = 518,586,763,177.84/817,422.76
  6. Step 6: Final answer
    x = 634,416.84

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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.