Home / 915,419.04-1,372,940.86-346,603.89

Finding the Fourth Proportional to 915,419.04, 1,372,940.86 and 346,603.89

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Solution

The fourth proportional to 915,419.04, 1,372,940.86 and 346,603.89 is: 519,834.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    915,419.04 : 1,372,940.86 = 346,603.89 : x
  2. Step 2: Convert to fraction form
    915,419.04/1,372,940.86 = 346,603.89/x
  3. Step 3: Cross multiply
    915,419.04x = 1,372,940.86 × 346,603.89
  4. Step 4: Simplify right side
    915,419.04x = 475,866,642,815.95
  5. Step 5: Solve for x
    x = 475,866,642,815.95/915,419.04
  6. Step 6: Final answer
    x = 519,834.77

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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.