Home / 489,509,331.70-732,563,386.35-448,694,662.90

Finding the Fourth Proportional to 489,509,331.70, 732,563,386.35 and 448,694,662.90

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Solution

The fourth proportional to 489,509,331.70, 732,563,386.35 and 448,694,662.90 is: 671,483,177.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    489,509,331.70 : 732,563,386.35 = 448,694,662.90 : x
  2. Step 2: Convert to fraction form
    489,509,331.70/732,563,386.35 = 448,694,662.90/x
  3. Step 3: Cross multiply
    489,509,331.70x = 732,563,386.35 × 448,694,662.90
  4. Step 4: Simplify right side
    489,509,331.70x = 328,697,281,691,195,712
  5. Step 5: Solve for x
    x = 328,697,281,691,195,712/489,509,331.70
  6. Step 6: Final answer
    x = 671,483,177.96

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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.