Home / 921,501.84-1,271,685.30-513,592.32

Finding the Fourth Proportional to 921,501.84, 1,271,685.30 and 513,592.32

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Solution

The fourth proportional to 921,501.84, 1,271,685.30 and 513,592.32 is: 708,764.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    921,501.84 : 1,271,685.30 = 513,592.32 : x
  2. Step 2: Convert to fraction form
    921,501.84/1,271,685.30 = 513,592.32/x
  3. Step 3: Cross multiply
    921,501.84x = 1,271,685.30 × 513,592.32
  4. Step 4: Simplify right side
    921,501.84x = 653,127,803,536.90
  5. Step 5: Solve for x
    x = 653,127,803,536.90/921,501.84
  6. Step 6: Final answer
    x = 708,764.51

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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.