Home / 723,328.02-998,187.90-401,038.20

Finding the Fourth Proportional to 723,328.02, 998,187.90 and 401,038.20

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Solution

The fourth proportional to 723,328.02, 998,187.90 and 401,038.20 is: 553,430.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    723,328.02 : 998,187.90 = 401,038.20 : x
  2. Step 2: Convert to fraction form
    723,328.02/998,187.90 = 401,038.20/x
  3. Step 3: Cross multiply
    723,328.02x = 998,187.90 × 401,038.20
  4. Step 4: Simplify right side
    723,328.02x = 400,311,478,677.78
  5. Step 5: Solve for x
    x = 400,311,478,677.78/723,328.02
  6. Step 6: Final answer
    x = 553,430.07

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.