Home / 879,077.40-1,318,616.10-429,867.60

Finding the Fourth Proportional to 879,077.40, 1,318,616.10 and 429,867.60

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Solution

The fourth proportional to 879,077.40, 1,318,616.10 and 429,867.60 is: 644,801.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    879,077.40 : 1,318,616.10 = 429,867.60 : x
  2. Step 2: Convert to fraction form
    879,077.40/1,318,616.10 = 429,867.60/x
  3. Step 3: Cross multiply
    879,077.40x = 1,318,616.10 × 429,867.60
  4. Step 4: Simplify right side
    879,077.40x = 566,830,338,228.36
  5. Step 5: Solve for x
    x = 566,830,338,228.36/879,077.40
  6. Step 6: Final answer
    x = 644,801.40

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Double scale
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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.