Home / 876,784.50-1,209,962.61-474,376.50

Finding the Fourth Proportional to 876,784.50, 1,209,962.61 and 474,376.50

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Solution

The fourth proportional to 876,784.50, 1,209,962.61 and 474,376.50 is: 654,639.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    876,784.50 : 1,209,962.61 = 474,376.50 : x
  2. Step 2: Convert to fraction form
    876,784.50/1,209,962.61 = 474,376.50/x
  3. Step 3: Cross multiply
    876,784.50x = 1,209,962.61 × 474,376.50
  4. Step 4: Simplify right side
    876,784.50x = 573,977,828,062.67
  5. Step 5: Solve for x
    x = 573,977,828,062.67/876,784.50
  6. Step 6: Final answer
    x = 654,639.57

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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.