Home / 761,293.62-1,050,109.92-489,715.47

Finding the Fourth Proportional to 761,293.62, 1,050,109.92 and 489,715.47

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Solution

The fourth proportional to 761,293.62, 1,050,109.92 and 489,715.47 is: 675,501.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    761,293.62 : 1,050,109.92 = 489,715.47 : x
  2. Step 2: Convert to fraction form
    761,293.62/1,050,109.92 = 489,715.47/x
  3. Step 3: Cross multiply
    761,293.62x = 1,050,109.92 × 489,715.47
  4. Step 4: Simplify right side
    761,293.62x = 514,255,073,024.46
  5. Step 5: Solve for x
    x = 514,255,073,024.46/761,293.62
  6. Step 6: Final answer
    x = 675,501.62

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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.