Home / 648,801.23-972,647.64-458,663.45

Finding the Fourth Proportional to 648,801.23, 972,647.64 and 458,663.45

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Solution

The fourth proportional to 648,801.23, 972,647.64 and 458,663.45 is: 687,603.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    648,801.23 : 972,647.64 = 458,663.45 : x
  2. Step 2: Convert to fraction form
    648,801.23/972,647.64 = 458,663.45/x
  3. Step 3: Cross multiply
    648,801.23x = 972,647.64 × 458,663.45
  4. Step 4: Simplify right side
    648,801.23x = 446,117,922,196.76
  5. Step 5: Solve for x
    x = 446,117,922,196.76/648,801.23
  6. Step 6: Final answer
    x = 687,603.39

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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.