Home / 830,947.60-1,246,421.40-270,038.80

Finding the Fourth Proportional to 830,947.60, 1,246,421.40 and 270,038.80

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Solution

The fourth proportional to 830,947.60, 1,246,421.40 and 270,038.80 is: 405,058.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    830,947.60 : 1,246,421.40 = 270,038.80 : x
  2. Step 2: Convert to fraction form
    830,947.60/1,246,421.40 = 270,038.80/x
  3. Step 3: Cross multiply
    830,947.60x = 1,246,421.40 × 270,038.80
  4. Step 4: Simplify right side
    830,947.60x = 336,582,139,150.32
  5. Step 5: Solve for x
    x = 336,582,139,150.32/830,947.60
  6. Step 6: Final answer
    x = 405,058.20

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Double scale
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Similar ratio
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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.