Home / 1,019,000.38-1,528,763.01-387,569.74

Finding the Fourth Proportional to 1,019,000.38, 1,528,763.01 and 387,569.74

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Solution

The fourth proportional to 1,019,000.38, 1,528,763.01 and 387,569.74 is: 581,454.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,019,000.38 : 1,528,763.01 = 387,569.74 : x
  2. Step 2: Convert to fraction form
    1,019,000.38/1,528,763.01 = 387,569.74/x
  3. Step 3: Cross multiply
    1,019,000.38x = 1,528,763.01 × 387,569.74
  4. Step 4: Simplify right side
    1,019,000.38x = 592,502,282,307.32
  5. Step 5: Solve for x
    x = 592,502,282,307.32/1,019,000.38
  6. Step 6: Final answer
    x = 581,454.43

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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.