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Finding the Fourth Proportional to 570,304.03, 786,994.80 and 315,640.03

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Solution

The fourth proportional to 570,304.03, 786,994.80 and 315,640.03 is: 435,569.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    570,304.03 : 786,994.80 = 315,640.03 : x
  2. Step 2: Convert to fraction form
    570,304.03/786,994.80 = 315,640.03/x
  3. Step 3: Cross multiply
    570,304.03x = 786,994.80 × 315,640.03
  4. Step 4: Simplify right side
    570,304.03x = 248,407,062,281.84
  5. Step 5: Solve for x
    x = 248,407,062,281.84/570,304.03
  6. Step 6: Final answer
    x = 435,569.54

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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.