Home / 989,332.20-1,483,506.90-315,325.80

Finding the Fourth Proportional to 989,332.20, 1,483,506.90 and 315,325.80

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Solution

The fourth proportional to 989,332.20, 1,483,506.90 and 315,325.80 is: 472,832.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    989,332.20 : 1,483,506.90 = 315,325.80 : x
  2. Step 2: Convert to fraction form
    989,332.20/1,483,506.90 = 315,325.80/x
  3. Step 3: Cross multiply
    989,332.20x = 1,483,506.90 × 315,325.80
  4. Step 4: Simplify right side
    989,332.20x = 467,788,000,048.02
  5. Step 5: Solve for x
    x = 467,788,000,048.02/989,332.20
  6. Step 6: Final answer
    x = 472,832.08

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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.