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Finding the Fourth Proportional to 631,550.40, 949,658.40 and 528,907.20

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Solution

The fourth proportional to 631,550.40, 949,658.40 and 528,907.20 is: 795,314.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    631,550.40 : 949,658.40 = 528,907.20 : x
  2. Step 2: Convert to fraction form
    631,550.40/949,658.40 = 528,907.20/x
  3. Step 3: Cross multiply
    631,550.40x = 949,658.40 × 528,907.20
  4. Step 4: Simplify right side
    631,550.40x = 502,281,165,300.48
  5. Step 5: Solve for x
    x = 502,281,165,300.48/631,550.40
  6. Step 6: Final answer
    x = 795,314.46

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.