Home / 708,496.14-977,675.83-398,445.08

Finding the Fourth Proportional to 708,496.14, 977,675.83 and 398,445.08

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Solution

The fourth proportional to 708,496.14, 977,675.83 and 398,445.08 is: 549,826.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    708,496.14 : 977,675.83 = 398,445.08 : x
  2. Step 2: Convert to fraction form
    708,496.14/977,675.83 = 398,445.08/x
  3. Step 3: Cross multiply
    708,496.14x = 977,675.83 × 398,445.08
  4. Step 4: Simplify right side
    708,496.14x = 389,550,125,746.49
  5. Step 5: Solve for x
    x = 389,550,125,746.49/708,496.14
  6. Step 6: Final answer
    x = 549,826.74

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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.