Home / 761,326.68-1,050,155.46-489,748.56

Finding the Fourth Proportional to 761,326.68, 1,050,155.46 and 489,748.56

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Solution

The fourth proportional to 761,326.68, 1,050,155.46 and 489,748.56 is: 675,547.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    761,326.68 : 1,050,155.46 = 489,748.56 : x
  2. Step 2: Convert to fraction form
    761,326.68/1,050,155.46 = 489,748.56/x
  3. Step 3: Cross multiply
    761,326.68x = 1,050,155.46 × 489,748.56
  4. Step 4: Simplify right side
    761,326.68x = 514,312,124,311.14
  5. Step 5: Solve for x
    x = 514,312,124,311.14/761,326.68
  6. Step 6: Final answer
    x = 675,547.22

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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.