Home / 857,554.86-1,286,526.36-288,920.51

Finding the Fourth Proportional to 857,554.86, 1,286,526.36 and 288,920.51

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Solution

The fourth proportional to 857,554.86, 1,286,526.36 and 288,920.51 is: 433,446.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    857,554.86 : 1,286,526.36 = 288,920.51 : x
  2. Step 2: Convert to fraction form
    857,554.86/1,286,526.36 = 288,920.51/x
  3. Step 3: Cross multiply
    857,554.86x = 1,286,526.36 × 288,920.51
  4. Step 4: Simplify right side
    857,554.86x = 371,703,849,909.76
  5. Step 5: Solve for x
    x = 371,703,849,909.76/857,554.86
  6. Step 6: Final answer
    x = 433,446.15

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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.