Home / 738,907.53-1,108,799.04-312,420.06

Finding the Fourth Proportional to 738,907.53, 1,108,799.04 and 312,420.06

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Solution

The fourth proportional to 738,907.53, 1,108,799.04 and 312,420.06 is: 468,815.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    738,907.53 : 1,108,799.04 = 312,420.06 : x
  2. Step 2: Convert to fraction form
    738,907.53/1,108,799.04 = 312,420.06/x
  3. Step 3: Cross multiply
    738,907.53x = 1,108,799.04 × 312,420.06
  4. Step 4: Simplify right side
    738,907.53x = 346,411,062,604.74
  5. Step 5: Solve for x
    x = 346,411,062,604.74/738,907.53
  6. Step 6: Final answer
    x = 468,815.17

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Double scale
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Similar ratio
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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.