Home / 987,417.60-1,362,641.28-534,710.40

Finding the Fourth Proportional to 987,417.60, 1,362,641.28 and 534,710.40

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Solution

The fourth proportional to 987,417.60, 1,362,641.28 and 534,710.40 is: 737,903.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    987,417.60 : 1,362,641.28 = 534,710.40 : x
  2. Step 2: Convert to fraction form
    987,417.60/1,362,641.28 = 534,710.40/x
  3. Step 3: Cross multiply
    987,417.60x = 1,362,641.28 × 534,710.40
  4. Step 4: Simplify right side
    987,417.60x = 728,618,463,885.31
  5. Step 5: Solve for x
    x = 728,618,463,885.31/987,417.60
  6. Step 6: Final answer
    x = 737,903.06

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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.