Home / 413,145.60-570,263.04-243,434.40

Finding the Fourth Proportional to 413,145.60, 570,263.04 and 243,434.40

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Solution

The fourth proportional to 413,145.60, 570,263.04 and 243,434.40 is: 336,011.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    413,145.60 : 570,263.04 = 243,434.40 : x
  2. Step 2: Convert to fraction form
    413,145.60/570,263.04 = 243,434.40/x
  3. Step 3: Cross multiply
    413,145.60x = 570,263.04 × 243,434.40
  4. Step 4: Simplify right side
    413,145.60x = 138,821,640,984.58
  5. Step 5: Solve for x
    x = 138,821,640,984.58/413,145.60
  6. Step 6: Final answer
    x = 336,011.42

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.