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Finding the Fourth Proportional to 570,011.84, 786,610.47 and 315,364.85

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Solution

The fourth proportional to 570,011.84, 786,610.47 and 315,364.85 is: 435,200.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    570,011.84 : 786,610.47 = 315,364.85 : x
  2. Step 2: Convert to fraction form
    570,011.84/786,610.47 = 315,364.85/x
  3. Step 3: Cross multiply
    570,011.84x = 786,610.47 × 315,364.85
  4. Step 4: Simplify right side
    570,011.84x = 248,069,292,879.98
  5. Step 5: Solve for x
    x = 248,069,292,879.98/570,011.84
  6. Step 6: Final answer
    x = 435,200.25

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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.