Home / 770,480.66-1,063,242.83-426,307.61

Finding the Fourth Proportional to 770,480.66, 1,063,242.83 and 426,307.61

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Solution

The fourth proportional to 770,480.66, 1,063,242.83 and 426,307.61 is: 588,293.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    770,480.66 : 1,063,242.83 = 426,307.61 : x
  2. Step 2: Convert to fraction form
    770,480.66/1,063,242.83 = 426,307.61/x
  3. Step 3: Cross multiply
    770,480.66x = 1,063,242.83 × 426,307.61
  4. Step 4: Simplify right side
    770,480.66x = 453,268,513,430.81
  5. Step 5: Solve for x
    x = 453,268,513,430.81/770,480.66
  6. Step 6: Final answer
    x = 588,293.17

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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.