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Finding the Fourth Proportional to 972,328.80, 1,458,483.60 and 307,480.80

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Solution

The fourth proportional to 972,328.80, 1,458,483.60 and 307,480.80 is: 461,218.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    972,328.80 : 1,458,483.60 = 307,480.80 : x
  2. Step 2: Convert to fraction form
    972,328.80/1,458,483.60 = 307,480.80/x
  3. Step 3: Cross multiply
    972,328.80x = 1,458,483.60 × 307,480.80
  4. Step 4: Simplify right side
    972,328.80x = 448,455,704,114.88
  5. Step 5: Solve for x
    x = 448,455,704,114.88/972,328.80
  6. Step 6: Final answer
    x = 461,218.16

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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.