Home / 626,530.40-939,795.60-289,570.40

Finding the Fourth Proportional to 626,530.40, 939,795.60 and 289,570.40

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Solution

The fourth proportional to 626,530.40, 939,795.60 and 289,570.40 is: 434,355.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    626,530.40 : 939,795.60 = 289,570.40 : x
  2. Step 2: Convert to fraction form
    626,530.40/939,795.60 = 289,570.40/x
  3. Step 3: Cross multiply
    626,530.40x = 939,795.60 × 289,570.40
  4. Step 4: Simplify right side
    626,530.40x = 272,136,987,810.24
  5. Step 5: Solve for x
    x = 272,136,987,810.24/626,530.40
  6. Step 6: Final answer
    x = 434,355.60

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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.