Home / 770,514.04-1,155,946.04-415,520.20

Finding the Fourth Proportional to 770,514.04, 1,155,946.04 and 415,520.20

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Solution

The fourth proportional to 770,514.04, 1,155,946.04 and 415,520.20 is: 623,374.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    770,514.04 : 1,155,946.04 = 415,520.20 : x
  2. Step 2: Convert to fraction form
    770,514.04/1,155,946.04 = 415,520.20/x
  3. Step 3: Cross multiply
    770,514.04x = 1,155,946.04 × 415,520.20
  4. Step 4: Simplify right side
    770,514.04x = 480,318,929,730.01
  5. Step 5: Solve for x
    x = 480,318,929,730.01/770,514.04
  6. Step 6: Final answer
    x = 623,374.66

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Double scale
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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.