Home / 899,106.54-1,348,854.21-478,321.26

Finding the Fourth Proportional to 899,106.54, 1,348,854.21 and 478,321.26

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Solution

The fourth proportional to 899,106.54, 1,348,854.21 and 478,321.26 is: 717,585.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    899,106.54 : 1,348,854.21 = 478,321.26 : x
  2. Step 2: Convert to fraction form
    899,106.54/1,348,854.21 = 478,321.26/x
  3. Step 3: Cross multiply
    899,106.54x = 1,348,854.21 × 478,321.26
  4. Step 4: Simplify right side
    899,106.54x = 645,185,645,283.51
  5. Step 5: Solve for x
    x = 645,185,645,283.51/899,106.54
  6. Step 6: Final answer
    x = 717,585.31

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.