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Finding the Fourth Proportional to 570,947.76, 787,844.34 and 316,235.16

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Solution

The fourth proportional to 570,947.76, 787,844.34 and 316,235.16 is: 436,369.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    570,947.76 : 787,844.34 = 316,235.16 : x
  2. Step 2: Convert to fraction form
    570,947.76/787,844.34 = 316,235.16/x
  3. Step 3: Cross multiply
    570,947.76x = 787,844.34 × 316,235.16
  4. Step 4: Simplify right side
    570,947.76x = 249,144,080,914.99
  5. Step 5: Solve for x
    x = 249,144,080,914.99/570,947.76
  6. Step 6: Final answer
    x = 436,369.31

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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.