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Finding the Fourth Proportional to 570,059.04, 786,671.10 and 315,410.25

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Solution

The fourth proportional to 570,059.04, 786,671.10 and 315,410.25 is: 435,260.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    570,059.04 : 786,671.10 = 315,410.25 : x
  2. Step 2: Convert to fraction form
    570,059.04/786,671.10 = 315,410.25/x
  3. Step 3: Cross multiply
    570,059.04x = 786,671.10 × 315,410.25
  4. Step 4: Simplify right side
    570,059.04x = 248,124,128,318.78
  5. Step 5: Solve for x
    x = 248,124,128,318.78/570,059.04
  6. Step 6: Final answer
    x = 435,260.40

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Double scale
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Similar ratio
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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.