Home / 875,006.40-1,312,801.20-426,007.20

Finding the Fourth Proportional to 875,006.40, 1,312,801.20 and 426,007.20

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Solution

The fourth proportional to 875,006.40, 1,312,801.20 and 426,007.20 is: 639,152.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    875,006.40 : 1,312,801.20 = 426,007.20 : x
  2. Step 2: Convert to fraction form
    875,006.40/1,312,801.20 = 426,007.20/x
  3. Step 3: Cross multiply
    875,006.40x = 1,312,801.20 × 426,007.20
  4. Step 4: Simplify right side
    875,006.40x = 559,262,763,368.64
  5. Step 5: Solve for x
    x = 559,262,763,368.64/875,006.40
  6. Step 6: Final answer
    x = 639,152.77

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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.