Home / 897,870.96-1,239,023.12-489,962.64

Finding the Fourth Proportional to 897,870.96, 1,239,023.12 and 489,962.64

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Solution

The fourth proportional to 897,870.96, 1,239,023.12 and 489,962.64 is: 676,127.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    897,870.96 : 1,239,023.12 = 489,962.64 : x
  2. Step 2: Convert to fraction form
    897,870.96/1,239,023.12 = 489,962.64/x
  3. Step 3: Cross multiply
    897,870.96x = 1,239,023.12 × 489,962.64
  4. Step 4: Simplify right side
    897,870.96x = 607,075,038,896.24
  5. Step 5: Solve for x
    x = 607,075,038,896.24/897,870.96
  6. Step 6: Final answer
    x = 676,127.27

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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.