Home / 771,428.36-1,064,547.60-427,250.64

Finding the Fourth Proportional to 771,428.36, 1,064,547.60 and 427,250.64

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Solution

The fourth proportional to 771,428.36, 1,064,547.60 and 427,250.64 is: 589,592.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    771,428.36 : 1,064,547.60 = 427,250.64 : x
  2. Step 2: Convert to fraction form
    771,428.36/1,064,547.60 = 427,250.64/x
  3. Step 3: Cross multiply
    771,428.36x = 1,064,547.60 × 427,250.64
  4. Step 4: Simplify right side
    771,428.36x = 454,828,643,410.46
  5. Step 5: Solve for x
    x = 454,828,643,410.46/771,428.36
  6. Step 6: Final answer
    x = 589,592.85

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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.