Home / 709,862.40-1,064,486.40-288,998.40

Finding the Fourth Proportional to 709,862.40, 1,064,486.40 and 288,998.40

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Solution

The fourth proportional to 709,862.40, 1,064,486.40 and 288,998.40 is: 433,372.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    709,862.40 : 1,064,486.40 = 288,998.40 : x
  2. Step 2: Convert to fraction form
    709,862.40/1,064,486.40 = 288,998.40/x
  3. Step 3: Cross multiply
    709,862.40x = 1,064,486.40 × 288,998.40
  4. Step 4: Simplify right side
    709,862.40x = 307,634,866,421.76
  5. Step 5: Solve for x
    x = 307,634,866,421.76/709,862.40
  6. Step 6: Final answer
    x = 433,372.53

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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.