Home / 897,690.16-1,238,972.72-535,137.40

Finding the Fourth Proportional to 897,690.16, 1,238,972.72 and 535,137.40

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Solution

The fourth proportional to 897,690.16, 1,238,972.72 and 535,137.40 is: 738,585.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    897,690.16 : 1,238,972.72 = 535,137.40 : x
  2. Step 2: Convert to fraction form
    897,690.16/1,238,972.72 = 535,137.40/x
  3. Step 3: Cross multiply
    897,690.16x = 1,238,972.72 × 535,137.40
  4. Step 4: Simplify right side
    897,690.16x = 663,020,640,051.73
  5. Step 5: Solve for x
    x = 663,020,640,051.73/897,690.16
  6. Step 6: Final answer
    x = 738,585.17

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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.