Home / 921,746.94-1,271,659.55-680,608.32

Finding the Fourth Proportional to 921,746.94, 1,271,659.55 and 680,608.32

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Solution

The fourth proportional to 921,746.94, 1,271,659.55 and 680,608.32 is: 938,980.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    921,746.94 : 1,271,659.55 = 680,608.32 : x
  2. Step 2: Convert to fraction form
    921,746.94/1,271,659.55 = 680,608.32/x
  3. Step 3: Cross multiply
    921,746.94x = 1,271,659.55 × 680,608.32
  4. Step 4: Simplify right side
    921,746.94x = 865,502,066,534.41
  5. Step 5: Solve for x
    x = 865,502,066,534.41/921,746.94
  6. Step 6: Final answer
    x = 938,980.14

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.