Home / 850,005.70-1,275,008.55-475,980.10

Finding the Fourth Proportional to 850,005.70, 1,275,008.55 and 475,980.10

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Solution

The fourth proportional to 850,005.70, 1,275,008.55 and 475,980.10 is: 713,970.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    850,005.70 : 1,275,008.55 = 475,980.10 : x
  2. Step 2: Convert to fraction form
    850,005.70/1,275,008.55 = 475,980.10/x
  3. Step 3: Cross multiply
    850,005.70x = 1,275,008.55 × 475,980.10
  4. Step 4: Simplify right side
    850,005.70x = 606,878,697,129.86
  5. Step 5: Solve for x
    x = 606,878,697,129.86/850,005.70
  6. Step 6: Final answer
    x = 713,970.15

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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.