Home / 903,907.72-1,355,329.98-342,981.64

Finding the Fourth Proportional to 903,907.72, 1,355,329.98 and 342,981.64

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Solution

The fourth proportional to 903,907.72, 1,355,329.98 and 342,981.64 is: 514,270.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    903,907.72 : 1,355,329.98 = 342,981.64 : x
  2. Step 2: Convert to fraction form
    903,907.72/1,355,329.98 = 342,981.64/x
  3. Step 3: Cross multiply
    903,907.72x = 1,355,329.98 × 342,981.64
  4. Step 4: Simplify right side
    903,907.72x = 464,853,299,281.57
  5. Step 5: Solve for x
    x = 464,853,299,281.57/903,907.72
  6. Step 6: Final answer
    x = 514,270.75

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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.