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Finding the Fourth Proportional to 624,681.60, 936,475.65 and 424,352.40

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Solution

The fourth proportional to 624,681.60, 936,475.65 and 424,352.40 is: 636,157.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    624,681.60 : 936,475.65 = 424,352.40 : x
  2. Step 2: Convert to fraction form
    624,681.60/936,475.65 = 424,352.40/x
  3. Step 3: Cross multiply
    624,681.60x = 936,475.65 × 424,352.40
  4. Step 4: Simplify right side
    624,681.60x = 397,395,689,619.06
  5. Step 5: Solve for x
    x = 397,395,689,619.06/624,681.60
  6. Step 6: Final answer
    x = 636,157.19

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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.