Home / 771,534.87-1,064,681.13-427,347.58

Finding the Fourth Proportional to 771,534.87, 1,064,681.13 and 427,347.58

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Solution

The fourth proportional to 771,534.87, 1,064,681.13 and 427,347.58 is: 589,719.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    771,534.87 : 1,064,681.13 = 427,347.58 : x
  2. Step 2: Convert to fraction form
    771,534.87/1,064,681.13 = 427,347.58/x
  3. Step 3: Cross multiply
    771,534.87x = 1,064,681.13 × 427,347.58
  4. Step 4: Simplify right side
    771,534.87x = 454,988,904,377.17
  5. Step 5: Solve for x
    x = 454,988,904,377.17/771,534.87
  6. Step 6: Final answer
    x = 589,719.17

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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.