Home / 887,132.40-1,330,698.60-326,050.80

Finding the Fourth Proportional to 887,132.40, 1,330,698.60 and 326,050.80

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Solution

The fourth proportional to 887,132.40, 1,330,698.60 and 326,050.80 is: 489,076.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    887,132.40 : 1,330,698.60 = 326,050.80 : x
  2. Step 2: Convert to fraction form
    887,132.40/1,330,698.60 = 326,050.80/x
  3. Step 3: Cross multiply
    887,132.40x = 1,330,698.60 × 326,050.80
  4. Step 4: Simplify right side
    887,132.40x = 433,875,343,088.88
  5. Step 5: Solve for x
    x = 433,875,343,088.88/887,132.40
  6. Step 6: Final answer
    x = 489,076.20

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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.