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Finding the Fourth Proportional to 713,263.20, 1,069,894.80 and 461,320.80

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Solution

The fourth proportional to 713,263.20, 1,069,894.80 and 461,320.80 is: 691,981.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    713,263.20 : 1,069,894.80 = 461,320.80 : x
  2. Step 2: Convert to fraction form
    713,263.20/1,069,894.80 = 461,320.80/x
  3. Step 3: Cross multiply
    713,263.20x = 1,069,894.80 × 461,320.80
  4. Step 4: Simplify right side
    713,263.20x = 493,564,725,051.84
  5. Step 5: Solve for x
    x = 493,564,725,051.84/713,263.20
  6. Step 6: Final answer
    x = 691,981.20

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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.