Home / 875,199.40-1,310,174.70-520,030.60

Finding the Fourth Proportional to 875,199.40, 1,310,174.70 and 520,030.60

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Solution

The fourth proportional to 875,199.40, 1,310,174.70 and 520,030.60 is: 778,486.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    875,199.40 : 1,310,174.70 = 520,030.60 : x
  2. Step 2: Convert to fraction form
    875,199.40/1,310,174.70 = 520,030.60/x
  3. Step 3: Cross multiply
    875,199.40x = 1,310,174.70 × 520,030.60
  4. Step 4: Simplify right side
    875,199.40x = 681,330,935,345.82
  5. Step 5: Solve for x
    x = 681,330,935,345.82/875,199.40
  6. Step 6: Final answer
    x = 778,486.52

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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.