Home / 1,040,567.40-1,559,814.30-478,621.80

Finding the Fourth Proportional to 1,040,567.40, 1,559,814.30 and 478,621.80

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Solution

The fourth proportional to 1,040,567.40, 1,559,814.30 and 478,621.80 is: 717,455.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,040,567.40 : 1,559,814.30 = 478,621.80 : x
  2. Step 2: Convert to fraction form
    1,040,567.40/1,559,814.30 = 478,621.80/x
  3. Step 3: Cross multiply
    1,040,567.40x = 1,559,814.30 × 478,621.80
  4. Step 4: Simplify right side
    1,040,567.40x = 746,561,127,931.74
  5. Step 5: Solve for x
    x = 746,561,127,931.74/1,040,567.40
  6. Step 6: Final answer
    x = 717,455.81

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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.