Home / 645,592.40-891,026.28-373,667.60

Finding the Fourth Proportional to 645,592.40, 891,026.28 and 373,667.60

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Solution

The fourth proportional to 645,592.40, 891,026.28 and 373,667.60 is: 515,724.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    645,592.40 : 891,026.28 = 373,667.60 : x
  2. Step 2: Convert to fraction form
    645,592.40/891,026.28 = 373,667.60/x
  3. Step 3: Cross multiply
    645,592.40x = 891,026.28 × 373,667.60
  4. Step 4: Simplify right side
    645,592.40x = 332,947,651,584.53
  5. Step 5: Solve for x
    x = 332,947,651,584.53/645,592.40
  6. Step 6: Final answer
    x = 515,724.24

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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.