Home / 788,640.09-1,088,323.89-426,063.81

Finding the Fourth Proportional to 788,640.09, 1,088,323.89 and 426,063.81

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Solution

The fourth proportional to 788,640.09, 1,088,323.89 and 426,063.81 is: 587,968.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    788,640.09 : 1,088,323.89 = 426,063.81 : x
  2. Step 2: Convert to fraction form
    788,640.09/1,088,323.89 = 426,063.81/x
  3. Step 3: Cross multiply
    788,640.09x = 1,088,323.89 × 426,063.81
  4. Step 4: Simplify right side
    788,640.09x = 463,695,423,087.42
  5. Step 5: Solve for x
    x = 463,695,423,087.42/788,640.09
  6. Step 6: Final answer
    x = 587,968.36

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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.