Home / 990,079.49-1,484,881.40-457,088.45

Finding the Fourth Proportional to 990,079.49, 1,484,881.40 and 457,088.45

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Solution

The fourth proportional to 990,079.49, 1,484,881.40 and 457,088.45 is: 685,522.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    990,079.49 : 1,484,881.40 = 457,088.45 : x
  2. Step 2: Convert to fraction form
    990,079.49/1,484,881.40 = 457,088.45/x
  3. Step 3: Cross multiply
    990,079.49x = 1,484,881.40 × 457,088.45
  4. Step 4: Simplify right side
    990,079.49x = 678,722,127,849.98
  5. Step 5: Solve for x
    x = 678,722,127,849.98/990,079.49
  6. Step 6: Final answer
    x = 685,522.87

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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.