Home / 948,569.70-1,308,998.35-518,840.53

Finding the Fourth Proportional to 948,569.70, 1,308,998.35 and 518,840.53

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Solution

The fourth proportional to 948,569.70, 1,308,998.35 and 518,840.53 is: 715,984.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    948,569.70 : 1,308,998.35 = 518,840.53 : x
  2. Step 2: Convert to fraction form
    948,569.70/1,308,998.35 = 518,840.53/x
  3. Step 3: Cross multiply
    948,569.70x = 1,308,998.35 × 518,840.53
  4. Step 4: Simplify right side
    948,569.70x = 679,161,395,088.92
  5. Step 5: Solve for x
    x = 679,161,395,088.92/948,569.70
  6. Step 6: Final answer
    x = 715,984.71

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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.