Home / 899,050-1,240,724.64-517,076.32

Finding the Fourth Proportional to 899,050, 1,240,724.64 and 517,076.32

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Solution

The fourth proportional to 899,050, 1,240,724.64 and 517,076.32 is: 713,585.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    899,050 : 1,240,724.64 = 517,076.32 : x
  2. Step 2: Convert to fraction form
    899,050/1,240,724.64 = 517,076.32/x
  3. Step 3: Cross multiply
    899,050x = 1,240,724.64 × 517,076.32
  4. Step 4: Simplify right side
    899,050x = 641,549,330,984.53
  5. Step 5: Solve for x
    x = 641,549,330,984.53/899,050
  6. Step 6: Final answer
    x = 713,585.82

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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.