Home / 807,485.86-1,211,401.02-402,895.62

Finding the Fourth Proportional to 807,485.86, 1,211,401.02 and 402,895.62

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Solution

The fourth proportional to 807,485.86, 1,211,401.02 and 402,895.62 is: 604,429.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    807,485.86 : 1,211,401.02 = 402,895.62 : x
  2. Step 2: Convert to fraction form
    807,485.86/1,211,401.02 = 402,895.62/x
  3. Step 3: Cross multiply
    807,485.86x = 1,211,401.02 × 402,895.62
  4. Step 4: Simplify right side
    807,485.86x = 488,068,164,266.10
  5. Step 5: Solve for x
    x = 488,068,164,266.10/807,485.86
  6. Step 6: Final answer
    x = 604,429.36

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Double scale
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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.