Home / 921,870.65-1,382,969.51-282,160.23

Finding the Fourth Proportional to 921,870.65, 1,382,969.51 and 282,160.23

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Solution

The fourth proportional to 921,870.65, 1,382,969.51 and 282,160.23 is: 423,290.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    921,870.65 : 1,382,969.51 = 282,160.23 : x
  2. Step 2: Convert to fraction form
    921,870.65/1,382,969.51 = 282,160.23/x
  3. Step 3: Cross multiply
    921,870.65x = 1,382,969.51 × 282,160.23
  4. Step 4: Simplify right side
    921,870.65x = 390,218,993,613.79
  5. Step 5: Solve for x
    x = 390,218,993,613.79/921,870.65
  6. Step 6: Final answer
    x = 423,290.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.