Home / 830,228.40-1,245,342.60-475,278.30

Finding the Fourth Proportional to 830,228.40, 1,245,342.60 and 475,278.30

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Solution

The fourth proportional to 830,228.40, 1,245,342.60 and 475,278.30 is: 712,917.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    830,228.40 : 1,245,342.60 = 475,278.30 : x
  2. Step 2: Convert to fraction form
    830,228.40/1,245,342.60 = 475,278.30/x
  3. Step 3: Cross multiply
    830,228.40x = 1,245,342.60 × 475,278.30
  4. Step 4: Simplify right side
    830,228.40x = 591,884,313,845.58
  5. Step 5: Solve for x
    x = 591,884,313,845.58/830,228.40
  6. Step 6: Final answer
    x = 712,917.45

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.