Home / 897,622.53-1,238,675.79-489,700.05

Finding the Fourth Proportional to 897,622.53, 1,238,675.79 and 489,700.05

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Solution

The fourth proportional to 897,622.53, 1,238,675.79 and 489,700.05 is: 675,762.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    897,622.53 : 1,238,675.79 = 489,700.05 : x
  2. Step 2: Convert to fraction form
    897,622.53/1,238,675.79 = 489,700.05/x
  3. Step 3: Cross multiply
    897,622.53x = 1,238,675.79 × 489,700.05
  4. Step 4: Simplify right side
    897,622.53x = 606,579,596,296.79
  5. Step 5: Solve for x
    x = 606,579,596,296.79/897,622.53
  6. Step 6: Final answer
    x = 675,762.45

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1.5x scale

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.