Home / 976,401.30-1,464,040.69-520,430.84

Finding the Fourth Proportional to 976,401.30, 1,464,040.69 and 520,430.84

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Solution

The fourth proportional to 976,401.30, 1,464,040.69 and 520,430.84 is: 780,347.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    976,401.30 : 1,464,040.69 = 520,430.84 : x
  2. Step 2: Convert to fraction form
    976,401.30/1,464,040.69 = 520,430.84/x
  3. Step 3: Cross multiply
    976,401.30x = 1,464,040.69 × 520,430.84
  4. Step 4: Simplify right side
    976,401.30x = 761,931,926,090.88
  5. Step 5: Solve for x
    x = 761,931,926,090.88/976,401.30
  6. Step 6: Final answer
    x = 780,347.10

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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.