Home / 847,904.10-1,271,856.15-374,345.70

Finding the Fourth Proportional to 847,904.10, 1,271,856.15 and 374,345.70

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Solution

The fourth proportional to 847,904.10, 1,271,856.15 and 374,345.70 is: 561,518.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    847,904.10 : 1,271,856.15 = 374,345.70 : x
  2. Step 2: Convert to fraction form
    847,904.10/1,271,856.15 = 374,345.70/x
  3. Step 3: Cross multiply
    847,904.10x = 1,271,856.15 × 374,345.70
  4. Step 4: Simplify right side
    847,904.10x = 476,113,880,771.06
  5. Step 5: Solve for x
    x = 476,113,880,771.06/847,904.10
  6. Step 6: Final answer
    x = 561,518.55

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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.