Home / 865,371.36-1,298,521.74-360,280.98

Finding the Fourth Proportional to 865,371.36, 1,298,521.74 and 360,280.98

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Solution

The fourth proportional to 865,371.36, 1,298,521.74 and 360,280.98 is: 540,614.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    865,371.36 : 1,298,521.74 = 360,280.98 : x
  2. Step 2: Convert to fraction form
    865,371.36/1,298,521.74 = 360,280.98/x
  3. Step 3: Cross multiply
    865,371.36x = 1,298,521.74 × 360,280.98
  4. Step 4: Simplify right side
    865,371.36x = 467,832,685,038.51
  5. Step 5: Solve for x
    x = 467,832,685,038.51/865,371.36
  6. Step 6: Final answer
    x = 540,614.94

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1.5x scale

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.