Home / 385,916.13-578,821.64-101,582.86

Finding the Fourth Proportional to 385,916.13, 578,821.64 and 101,582.86

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Solution

The fourth proportional to 385,916.13, 578,821.64 and 101,582.86 is: 152,360.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,916.13 : 578,821.64 = 101,582.86 : x
  2. Step 2: Convert to fraction form
    385,916.13/578,821.64 = 101,582.86/x
  3. Step 3: Cross multiply
    385,916.13x = 578,821.64 × 101,582.86
  4. Step 4: Simplify right side
    385,916.13x = 58,798,357,113.18
  5. Step 5: Solve for x
    x = 58,798,357,113.18/385,916.13
  6. Step 6: Final answer
    x = 152,360.46

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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.