Home / 730,322.48-1,007,787.48-408,007.28

Finding the Fourth Proportional to 730,322.48, 1,007,787.48 and 408,007.28

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Solution

The fourth proportional to 730,322.48, 1,007,787.48 and 408,007.28 is: 563,017.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    730,322.48 : 1,007,787.48 = 408,007.28 : x
  2. Step 2: Convert to fraction form
    730,322.48/1,007,787.48 = 408,007.28/x
  3. Step 3: Cross multiply
    730,322.48x = 1,007,787.48 × 408,007.28
  4. Step 4: Simplify right side
    730,322.48x = 411,184,628,532.85
  5. Step 5: Solve for x
    x = 411,184,628,532.85/730,322.48
  6. Step 6: Final answer
    x = 563,017.90

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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.