Home / 856,320.04-1,279,271.81-554,340.52

Finding the Fourth Proportional to 856,320.04, 1,279,271.81 and 554,340.52

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Solution

The fourth proportional to 856,320.04, 1,279,271.81 and 554,340.52 is: 828,139.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    856,320.04 : 1,279,271.81 = 554,340.52 : x
  2. Step 2: Convert to fraction form
    856,320.04/1,279,271.81 = 554,340.52/x
  3. Step 3: Cross multiply
    856,320.04x = 1,279,271.81 × 554,340.52
  4. Step 4: Simplify right side
    856,320.04x = 709,152,200,376.74
  5. Step 5: Solve for x
    x = 709,152,200,376.74/856,320.04
  6. Step 6: Final answer
    x = 828,139.21

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.