Home / 1,330,779.40-1,997,421.90-700,145.80

Finding the Fourth Proportional to 1,330,779.40, 1,997,421.90 and 700,145.80

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Solution

The fourth proportional to 1,330,779.40, 1,997,421.90 and 700,145.80 is: 1,050,877.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,330,779.40 : 1,997,421.90 = 700,145.80 : x
  2. Step 2: Convert to fraction form
    1,330,779.40/1,997,421.90 = 700,145.80/x
  3. Step 3: Cross multiply
    1,330,779.40x = 1,997,421.90 × 700,145.80
  4. Step 4: Simplify right side
    1,330,779.40x = 1,398,486,554,113.02
  5. Step 5: Solve for x
    x = 1,398,486,554,113.02/1,330,779.40
  6. Step 6: Final answer
    x = 1,050,877.82

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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.