Home / 1,013,999.60-1,520,999.40-516,335.60

Finding the Fourth Proportional to 1,013,999.60, 1,520,999.40 and 516,335.60

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Solution

The fourth proportional to 1,013,999.60, 1,520,999.40 and 516,335.60 is: 774,503.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,013,999.60 : 1,520,999.40 = 516,335.60 : x
  2. Step 2: Convert to fraction form
    1,013,999.60/1,520,999.40 = 516,335.60/x
  3. Step 3: Cross multiply
    1,013,999.60x = 1,520,999.40 × 516,335.60
  4. Step 4: Simplify right side
    1,013,999.60x = 785,346,137,798.64
  5. Step 5: Solve for x
    x = 785,346,137,798.64/1,013,999.60
  6. Step 6: Final answer
    x = 774,503.40

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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.