Home / 670,830.10-1,007,411.55-355,902.10

Finding the Fourth Proportional to 670,830.10, 1,007,411.55 and 355,902.10

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Solution

The fourth proportional to 670,830.10, 1,007,411.55 and 355,902.10 is: 534,471.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    670,830.10 : 1,007,411.55 = 355,902.10 : x
  2. Step 2: Convert to fraction form
    670,830.10/1,007,411.55 = 355,902.10/x
  3. Step 3: Cross multiply
    670,830.10x = 1,007,411.55 × 355,902.10
  4. Step 4: Simplify right side
    670,830.10x = 358,539,886,209.26
  5. Step 5: Solve for x
    x = 358,539,886,209.26/670,830.10
  6. Step 6: Final answer
    x = 534,471.97

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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.