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Finding the Fourth Proportional to 573,416.82, 791,320.59 and 315,307.14

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Solution

The fourth proportional to 573,416.82, 791,320.59 and 315,307.14 is: 435,126.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    573,416.82 : 791,320.59 = 315,307.14 : x
  2. Step 2: Convert to fraction form
    573,416.82/791,320.59 = 315,307.14/x
  3. Step 3: Cross multiply
    573,416.82x = 791,320.59 × 315,307.14
  4. Step 4: Simplify right side
    573,416.82x = 249,509,032,056.01
  5. Step 5: Solve for x
    x = 249,509,032,056.01/573,416.82
  6. Step 6: Final answer
    x = 435,126.81

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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.