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Finding the Fourth Proportional to 525,653.08, 725,410.32 and 310,830.16

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Solution

The fourth proportional to 525,653.08, 725,410.32 and 310,830.16 is: 428,950.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    525,653.08 : 725,410.32 = 310,830.16 : x
  2. Step 2: Convert to fraction form
    525,653.08/725,410.32 = 310,830.16/x
  3. Step 3: Cross multiply
    525,653.08x = 725,410.32 × 310,830.16
  4. Step 4: Simplify right side
    525,653.08x = 225,479,405,831.25
  5. Step 5: Solve for x
    x = 225,479,405,831.25/525,653.08
  6. Step 6: Final answer
    x = 428,950.98

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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.