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Finding the Fourth Proportional to 570,624.69, 787,461.51 and 315,975.87

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Solution

The fourth proportional to 570,624.69, 787,461.51 and 315,975.87 is: 436,046.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    570,624.69 : 787,461.51 = 315,975.87 : x
  2. Step 2: Convert to fraction form
    570,624.69/787,461.51 = 315,975.87/x
  3. Step 3: Cross multiply
    570,624.69x = 787,461.51 × 315,975.87
  4. Step 4: Simplify right side
    570,624.69x = 248,818,835,713.76
  5. Step 5: Solve for x
    x = 248,818,835,713.76/570,624.69
  6. Step 6: Final answer
    x = 436,046.39

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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.