Home / 644,320.49-891,088.93-563,607.73

Finding the Fourth Proportional to 644,320.49, 891,088.93 and 563,607.73

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Solution

The fourth proportional to 644,320.49, 891,088.93 and 563,607.73 is: 779,463.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    644,320.49 : 891,088.93 = 563,607.73 : x
  2. Step 2: Convert to fraction form
    644,320.49/891,088.93 = 563,607.73/x
  3. Step 3: Cross multiply
    644,320.49x = 891,088.93 × 563,607.73
  4. Step 4: Simplify right side
    644,320.49x = 502,224,610,883.80
  5. Step 5: Solve for x
    x = 502,224,610,883.80/644,320.49
  6. Step 6: Final answer
    x = 779,463.98

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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.