Home / 770,001.20-1,154,980.20-349,276.40

Finding the Fourth Proportional to 770,001.20, 1,154,980.20 and 349,276.40

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Solution

The fourth proportional to 770,001.20, 1,154,980.20 and 349,276.40 is: 523,904.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    770,001.20 : 1,154,980.20 = 349,276.40 : x
  2. Step 2: Convert to fraction form
    770,001.20/1,154,980.20 = 349,276.40/x
  3. Step 3: Cross multiply
    770,001.20x = 1,154,980.20 × 349,276.40
  4. Step 4: Simplify right side
    770,001.20x = 403,407,326,327.28
  5. Step 5: Solve for x
    x = 403,407,326,327.28/770,001.20
  6. Step 6: Final answer
    x = 523,904.80

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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.