Home / 778,643.70-1,168,293.60-423,912.30

Finding the Fourth Proportional to 778,643.70, 1,168,293.60 and 423,912.30

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Solution

The fourth proportional to 778,643.70, 1,168,293.60 and 423,912.30 is: 636,047.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    778,643.70 : 1,168,293.60 = 423,912.30 : x
  2. Step 2: Convert to fraction form
    778,643.70/1,168,293.60 = 423,912.30/x
  3. Step 3: Cross multiply
    778,643.70x = 1,168,293.60 × 423,912.30
  4. Step 4: Simplify right side
    778,643.70x = 495,254,027,051.28
  5. Step 5: Solve for x
    x = 495,254,027,051.28/778,643.70
  6. Step 6: Final answer
    x = 636,047.05

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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.