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Finding the Fourth Proportional to 898,390.59, 1,347,779.63 and 258,690.01

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Solution

The fourth proportional to 898,390.59, 1,347,779.63 and 258,690.01 is: 388,090.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    898,390.59 : 1,347,779.63 = 258,690.01 : x
  2. Step 2: Convert to fraction form
    898,390.59/1,347,779.63 = 258,690.01/x
  3. Step 3: Cross multiply
    898,390.59x = 1,347,779.63 × 258,690.01
  4. Step 4: Simplify right side
    898,390.59x = 348,657,125,962.50
  5. Step 5: Solve for x
    x = 348,657,125,962.50/898,390.59
  6. Step 6: Final answer
    x = 388,090.80

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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.