Home / 899,679.40-1,348,655.10-520,210.60

Finding the Fourth Proportional to 899,679.40, 1,348,655.10 and 520,210.60

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Solution

The fourth proportional to 899,679.40, 1,348,655.10 and 520,210.60 is: 779,816.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    899,679.40 : 1,348,655.10 = 520,210.60 : x
  2. Step 2: Convert to fraction form
    899,679.40/1,348,655.10 = 520,210.60/x
  3. Step 3: Cross multiply
    899,679.40x = 1,348,655.10 × 520,210.60
  4. Step 4: Simplify right side
    899,679.40x = 701,584,678,764.06
  5. Step 5: Solve for x
    x = 701,584,678,764.06/899,679.40
  6. Step 6: Final answer
    x = 779,816.32

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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.