Home / 970,543.80-1,455,815.70-260,643.60

Finding the Fourth Proportional to 970,543.80, 1,455,815.70 and 260,643.60

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Solution

The fourth proportional to 970,543.80, 1,455,815.70 and 260,643.60 is: 390,965.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    970,543.80 : 1,455,815.70 = 260,643.60 : x
  2. Step 2: Convert to fraction form
    970,543.80/1,455,815.70 = 260,643.60/x
  3. Step 3: Cross multiply
    970,543.80x = 1,455,815.70 × 260,643.60
  4. Step 4: Simplify right side
    970,543.80x = 379,449,044,984.52
  5. Step 5: Solve for x
    x = 379,449,044,984.52/970,543.80
  6. Step 6: Final answer
    x = 390,965.40

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Double scale
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Similar ratio
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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.