Home / 1,259,697.80-1,888,337.10-417,816.20

Finding the Fourth Proportional to 1,259,697.80, 1,888,337.10 and 417,816.20

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Solution

The fourth proportional to 1,259,697.80, 1,888,337.10 and 417,816.20 is: 626,323.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,259,697.80 : 1,888,337.10 = 417,816.20 : x
  2. Step 2: Convert to fraction form
    1,259,697.80/1,888,337.10 = 417,816.20/x
  3. Step 3: Cross multiply
    1,259,697.80x = 1,888,337.10 × 417,816.20
  4. Step 4: Simplify right side
    1,259,697.80x = 788,977,831,441.02
  5. Step 5: Solve for x
    x = 788,977,831,441.02/1,259,697.80
  6. Step 6: Final answer
    x = 626,323.10

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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.