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Finding the Fourth Proportional to 570,055.20, 786,528.54 and 340,518.54

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Solution

The fourth proportional to 570,055.20, 786,528.54 and 340,518.54 is: 469,827.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    570,055.20 : 786,528.54 = 340,518.54 : x
  2. Step 2: Convert to fraction form
    570,055.20/786,528.54 = 340,518.54/x
  3. Step 3: Cross multiply
    570,055.20x = 786,528.54 × 340,518.54
  4. Step 4: Simplify right side
    570,055.20x = 267,827,550,109.13
  5. Step 5: Solve for x
    x = 267,827,550,109.13/570,055.20
  6. Step 6: Final answer
    x = 469,827.40

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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.