Home / 876,280.80-1,314,032.40-402,722.40

Finding the Fourth Proportional to 876,280.80, 1,314,032.40 and 402,722.40

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Solution

The fourth proportional to 876,280.80, 1,314,032.40 and 402,722.40 is: 603,904.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    876,280.80 : 1,314,032.40 = 402,722.40 : x
  2. Step 2: Convert to fraction form
    876,280.80/1,314,032.40 = 402,722.40/x
  3. Step 3: Cross multiply
    876,280.80x = 1,314,032.40 × 402,722.40
  4. Step 4: Simplify right side
    876,280.80x = 529,190,281,805.76
  5. Step 5: Solve for x
    x = 529,190,281,805.76/876,280.80
  6. Step 6: Final answer
    x = 603,904.91

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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.