Home / 1,007,090.40-1,390,078.23-658,281.50

Finding the Fourth Proportional to 1,007,090.40, 1,390,078.23 and 658,281.50

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Solution

The fourth proportional to 1,007,090.40, 1,390,078.23 and 658,281.50 is: 908,620.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,007,090.40 : 1,390,078.23 = 658,281.50 : x
  2. Step 2: Convert to fraction form
    1,007,090.40/1,390,078.23 = 658,281.50/x
  3. Step 3: Cross multiply
    1,007,090.40x = 1,390,078.23 × 658,281.50
  4. Step 4: Simplify right side
    1,007,090.40x = 915,062,775,411.35
  5. Step 5: Solve for x
    x = 915,062,775,411.35/1,007,090.40
  6. Step 6: Final answer
    x = 908,620.29

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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.