Home / 549,035.40-822,938.70-312,491.40

Finding the Fourth Proportional to 549,035.40, 822,938.70 and 312,491.40

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Solution

The fourth proportional to 549,035.40, 822,938.70 and 312,491.40 is: 468,387.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    549,035.40 : 822,938.70 = 312,491.40 : x
  2. Step 2: Convert to fraction form
    549,035.40/822,938.70 = 312,491.40/x
  3. Step 3: Cross multiply
    549,035.40x = 822,938.70 × 312,491.40
  4. Step 4: Simplify right side
    549,035.40x = 257,161,266,477.18
  5. Step 5: Solve for x
    x = 257,161,266,477.18/549,035.40
  6. Step 6: Final answer
    x = 468,387.41

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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.