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Finding the Fourth Proportional to 570,597.81, 787,415.36 and 315,943.53

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Solution

The fourth proportional to 570,597.81, 787,415.36 and 315,943.53 is: 435,996.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    570,597.81 : 787,415.36 = 315,943.53 : x
  2. Step 2: Convert to fraction form
    570,597.81/787,415.36 = 315,943.53/x
  3. Step 3: Cross multiply
    570,597.81x = 787,415.36 × 315,943.53
  4. Step 4: Simplify right side
    570,597.81x = 248,778,786,834.90
  5. Step 5: Solve for x
    x = 248,778,786,834.90/570,597.81
  6. Step 6: Final answer
    x = 435,996.74

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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.