Home / 828,620.90-1,242,931.35-473,670.80

Finding the Fourth Proportional to 828,620.90, 1,242,931.35 and 473,670.80

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Solution

The fourth proportional to 828,620.90, 1,242,931.35 and 473,670.80 is: 710,506.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    828,620.90 : 1,242,931.35 = 473,670.80 : x
  2. Step 2: Convert to fraction form
    828,620.90/1,242,931.35 = 473,670.80/x
  3. Step 3: Cross multiply
    828,620.90x = 1,242,931.35 × 473,670.80
  4. Step 4: Simplify right side
    828,620.90x = 588,740,286,899.58
  5. Step 5: Solve for x
    x = 588,740,286,899.58/828,620.90
  6. Step 6: Final answer
    x = 710,506.20

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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.