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Finding the Fourth Proportional to 648,376.68, 972,611.73 and 249,017.46

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Solution

The fourth proportional to 648,376.68, 972,611.73 and 249,017.46 is: 373,544.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    648,376.68 : 972,611.73 = 249,017.46 : x
  2. Step 2: Convert to fraction form
    648,376.68/972,611.73 = 249,017.46/x
  3. Step 3: Cross multiply
    648,376.68x = 972,611.73 × 249,017.46
  4. Step 4: Simplify right side
    648,376.68x = 242,197,302,570.81
  5. Step 5: Solve for x
    x = 242,197,302,570.81/648,376.68
  6. Step 6: Final answer
    x = 373,544.13

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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.