Home / 730,218.08-1,007,689.84-407,932.80

Finding the Fourth Proportional to 730,218.08, 1,007,689.84 and 407,932.80

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Solution

The fourth proportional to 730,218.08, 1,007,689.84 and 407,932.80 is: 562,941.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    730,218.08 : 1,007,689.84 = 407,932.80 : x
  2. Step 2: Convert to fraction form
    730,218.08/1,007,689.84 = 407,932.80/x
  3. Step 3: Cross multiply
    730,218.08x = 1,007,689.84 × 407,932.80
  4. Step 4: Simplify right side
    730,218.08x = 411,069,737,962.75
  5. Step 5: Solve for x
    x = 411,069,737,962.75/730,218.08
  6. Step 6: Final answer
    x = 562,941.06

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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.