Home / 830,022.40-1,245,033.60-546,587.20

Finding the Fourth Proportional to 830,022.40, 1,245,033.60 and 546,587.20

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Solution

The fourth proportional to 830,022.40, 1,245,033.60 and 546,587.20 is: 819,880.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    830,022.40 : 1,245,033.60 = 546,587.20 : x
  2. Step 2: Convert to fraction form
    830,022.40/1,245,033.60 = 546,587.20/x
  3. Step 3: Cross multiply
    830,022.40x = 1,245,033.60 × 546,587.20
  4. Step 4: Simplify right side
    830,022.40x = 680,519,429,329.92
  5. Step 5: Solve for x
    x = 680,519,429,329.92/830,022.40
  6. Step 6: Final answer
    x = 819,880.80

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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.