Home / 1,248,686.65-1,872,271.50-489,618.69

Finding the Fourth Proportional to 1,248,686.65, 1,872,271.50 and 489,618.69

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Solution

The fourth proportional to 1,248,686.65, 1,872,271.50 and 489,618.69 is: 734,130.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,248,686.65 : 1,872,271.50 = 489,618.69 : x
  2. Step 2: Convert to fraction form
    1,248,686.65/1,872,271.50 = 489,618.69/x
  3. Step 3: Cross multiply
    1,248,686.65x = 1,872,271.50 × 489,618.69
  4. Step 4: Simplify right side
    1,248,686.65x = 916,699,119,154.34
  5. Step 5: Solve for x
    x = 916,699,119,154.34/1,248,686.65
  6. Step 6: Final answer
    x = 734,130.63

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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.