Home / 806,070.90-1,111,622.67-500,196.90

Finding the Fourth Proportional to 806,070.90, 1,111,622.67 and 500,196.90

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Solution

The fourth proportional to 806,070.90, 1,111,622.67 and 500,196.90 is: 689,803.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    806,070.90 : 1,111,622.67 = 500,196.90 : x
  2. Step 2: Convert to fraction form
    806,070.90/1,111,622.67 = 500,196.90/x
  3. Step 3: Cross multiply
    806,070.90x = 1,111,622.67 × 500,196.90
  4. Step 4: Simplify right side
    806,070.90x = 556,030,213,503.72
  5. Step 5: Solve for x
    x = 556,030,213,503.72/806,070.90
  6. Step 6: Final answer
    x = 689,803.11

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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.