Home / 903,280.80-1,246,437.72-521,430.60

Finding the Fourth Proportional to 903,280.80, 1,246,437.72 and 521,430.60

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Solution

The fourth proportional to 903,280.80, 1,246,437.72 and 521,430.60 is: 719,522.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    903,280.80 : 1,246,437.72 = 521,430.60 : x
  2. Step 2: Convert to fraction form
    903,280.80/1,246,437.72 = 521,430.60/x
  3. Step 3: Cross multiply
    903,280.80x = 1,246,437.72 × 521,430.60
  4. Step 4: Simplify right side
    903,280.80x = 649,930,768,202.23
  5. Step 5: Solve for x
    x = 649,930,768,202.23/903,280.80
  6. Step 6: Final answer
    x = 719,522.40

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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.