Home / 558,929.12-772,106.28-498,480.32

Finding the Fourth Proportional to 558,929.12, 772,106.28 and 498,480.32

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Solution

The fourth proportional to 558,929.12, 772,106.28 and 498,480.32 is: 688,602.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    558,929.12 : 772,106.28 = 498,480.32 : x
  2. Step 2: Convert to fraction form
    558,929.12/772,106.28 = 498,480.32/x
  3. Step 3: Cross multiply
    558,929.12x = 772,106.28 × 498,480.32
  4. Step 4: Simplify right side
    558,929.12x = 384,879,785,528.41
  5. Step 5: Solve for x
    x = 384,879,785,528.41/558,929.12
  6. Step 6: Final answer
    x = 688,602.14

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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.