Home / 563,057.04-777,018.90-308,417.40

Finding the Fourth Proportional to 563,057.04, 777,018.90 and 308,417.40

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Solution

The fourth proportional to 563,057.04, 777,018.90 and 308,417.40 is: 425,616.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    563,057.04 : 777,018.90 = 308,417.40 : x
  2. Step 2: Convert to fraction form
    563,057.04/777,018.90 = 308,417.40/x
  3. Step 3: Cross multiply
    563,057.04x = 777,018.90 × 308,417.40
  4. Step 4: Simplify right side
    563,057.04x = 239,646,148,888.86
  5. Step 5: Solve for x
    x = 239,646,148,888.86/563,057.04
  6. Step 6: Final answer
    x = 425,616.11

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1.5x scale

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.