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Finding the Fourth Proportional to 570,547.55, 787,380.23 and 315,898.73

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Solution

The fourth proportional to 570,547.55, 787,380.23 and 315,898.73 is: 435,953.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    570,547.55 : 787,380.23 = 315,898.73 : x
  2. Step 2: Convert to fraction form
    570,547.55/787,380.23 = 315,898.73/x
  3. Step 3: Cross multiply
    570,547.55x = 787,380.23 × 315,898.73
  4. Step 4: Simplify right side
    570,547.55x = 248,732,417,141.71
  5. Step 5: Solve for x
    x = 248,732,417,141.71/570,547.55
  6. Step 6: Final answer
    x = 435,953.88

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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.