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Finding the Fourth Proportional to 570,948.70, 787,851.75 and 316,252.30

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Solution

The fourth proportional to 570,948.70, 787,851.75 and 316,252.30 is: 436,396.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    570,948.70 : 787,851.75 = 316,252.30 : x
  2. Step 2: Convert to fraction form
    570,948.70/787,851.75 = 316,252.30/x
  3. Step 3: Cross multiply
    570,948.70x = 787,851.75 × 316,252.30
  4. Step 4: Simplify right side
    570,948.70x = 249,159,927,996.53
  5. Step 5: Solve for x
    x = 249,159,927,996.53/570,948.70
  6. Step 6: Final answer
    x = 436,396.35

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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.