Home / 708,637.35-977,877.40-402,671.26

Finding the Fourth Proportional to 708,637.35, 977,877.40 and 402,671.26

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Solution

The fourth proportional to 708,637.35, 977,877.40 and 402,671.26 is: 555,662.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    708,637.35 : 977,877.40 = 402,671.26 : x
  2. Step 2: Convert to fraction form
    708,637.35/977,877.40 = 402,671.26/x
  3. Step 3: Cross multiply
    708,637.35x = 977,877.40 × 402,671.26
  4. Step 4: Simplify right side
    708,637.35x = 393,763,124,783.52
  5. Step 5: Solve for x
    x = 393,763,124,783.52/708,637.35
  6. Step 6: Final answer
    x = 555,662.39

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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.