Finding the Fourth Proportional to 886,973.76, 1,223,909.28 and 499,798.08
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Solution
The fourth proportional to 886,973.76, 1,223,909.28 and 499,798.08 is: 689,656.83
Step by Step Solution
- Step 1: Write the proportion equation
886,973.76 : 1,223,909.28 = 499,798.08 : x - Step 2: Convert to fraction form
886,973.76/1,223,909.28 = 499,798.08/x - Step 3: Cross multiply
886,973.76x = 1,223,909.28 × 499,798.08 - Step 4: Simplify right side
886,973.76x = 611,707,508,238.18 - Step 5: Solve for x
x = 611,707,508,238.18/886,973.76 - Step 6: Final answer
x = 689,656.83
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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.