Home / 390,053.70-583,914.15-366,984.90

Finding the Fourth Proportional to 390,053.70, 583,914.15 and 366,984.90

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Solution

The fourth proportional to 390,053.70, 583,914.15 and 366,984.90 is: 549,379.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    390,053.70 : 583,914.15 = 366,984.90 : x
  2. Step 2: Convert to fraction form
    390,053.70/583,914.15 = 366,984.90/x
  3. Step 3: Cross multiply
    390,053.70x = 583,914.15 × 366,984.90
  4. Step 4: Simplify right side
    390,053.70x = 214,287,675,946.34
  5. Step 5: Solve for x
    x = 214,287,675,946.34/390,053.70
  6. Step 6: Final answer
    x = 549,379.93

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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.