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Finding the Fourth Proportional to 489,567.20, 734,350.80 and 470,904.80

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Solution

The fourth proportional to 489,567.20, 734,350.80 and 470,904.80 is: 706,357.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    489,567.20 : 734,350.80 = 470,904.80 : x
  2. Step 2: Convert to fraction form
    489,567.20/734,350.80 = 470,904.80/x
  3. Step 3: Cross multiply
    489,567.20x = 734,350.80 × 470,904.80
  4. Step 4: Simplify right side
    489,567.20x = 345,809,316,603.84
  5. Step 5: Solve for x
    x = 345,809,316,603.84/489,567.20
  6. Step 6: Final answer
    x = 706,357.20

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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.