Home / 771,465.87-1,064,392.56-499,102.35

Finding the Fourth Proportional to 771,465.87, 1,064,392.56 and 499,102.35

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Solution

The fourth proportional to 771,465.87, 1,064,392.56 and 499,102.35 is: 688,612.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    771,465.87 : 1,064,392.56 = 499,102.35 : x
  2. Step 2: Convert to fraction form
    771,465.87/1,064,392.56 = 499,102.35/x
  3. Step 3: Cross multiply
    771,465.87x = 1,064,392.56 × 499,102.35
  4. Step 4: Simplify right side
    771,465.87x = 531,240,828,018.52
  5. Step 5: Solve for x
    x = 531,240,828,018.52/771,465.87
  6. Step 6: Final answer
    x = 688,612.22

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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.