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Finding the Fourth Proportional to 554,671.30, 830,840.55 and 461,359.30

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Solution

The fourth proportional to 554,671.30, 830,840.55 and 461,359.30 is: 691,068.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    554,671.30 : 830,840.55 = 461,359.30 : x
  2. Step 2: Convert to fraction form
    554,671.30/830,840.55 = 461,359.30/x
  3. Step 3: Cross multiply
    554,671.30x = 830,840.55 × 461,359.30
  4. Step 4: Simplify right side
    554,671.30x = 383,316,014,559.62
  5. Step 5: Solve for x
    x = 383,316,014,559.62/554,671.30
  6. Step 6: Final answer
    x = 691,068.77

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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.