Home / 828,746.40-1,242,244.80-472,994.40

Finding the Fourth Proportional to 828,746.40, 1,242,244.80 and 472,994.40

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Solution

The fourth proportional to 828,746.40, 1,242,244.80 and 472,994.40 is: 708,992.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    828,746.40 : 1,242,244.80 = 472,994.40 : x
  2. Step 2: Convert to fraction form
    828,746.40/1,242,244.80 = 472,994.40/x
  3. Step 3: Cross multiply
    828,746.40x = 1,242,244.80 × 472,994.40
  4. Step 4: Simplify right side
    828,746.40x = 587,574,833,829.12
  5. Step 5: Solve for x
    x = 587,574,833,829.12/828,746.40
  6. Step 6: Final answer
    x = 708,992.32

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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.