Home / 921,494.60-1,271,668.50-513,622.35

Finding the Fourth Proportional to 921,494.60, 1,271,668.50 and 513,622.35

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Solution

The fourth proportional to 921,494.60, 1,271,668.50 and 513,622.35 is: 708,802.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    921,494.60 : 1,271,668.50 = 513,622.35 : x
  2. Step 2: Convert to fraction form
    921,494.60/1,271,668.50 = 513,622.35/x
  3. Step 3: Cross multiply
    921,494.60x = 1,271,668.50 × 513,622.35
  4. Step 4: Simplify right side
    921,494.60x = 653,157,363,390.98
  5. Step 5: Solve for x
    x = 653,157,363,390.98/921,494.60
  6. Step 6: Final answer
    x = 708,802.16

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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.