Finding the Fourth Proportional to 1,118,454.24, 1,543,574.16 and 688,985.76
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Solution
The fourth proportional to 1,118,454.24, 1,543,574.16 and 688,985.76 is: 950,866.45
Step by Step Solution
- Step 1: Write the proportion equation
1,118,454.24 : 1,543,574.16 = 688,985.76 : x - Step 2: Convert to fraction form
1,118,454.24/1,543,574.16 = 688,985.76/x - Step 3: Cross multiply
1,118,454.24x = 1,543,574.16 × 688,985.76 - Step 4: Simplify right side
1,118,454.24x = 1,063,500,615,743.96 - Step 5: Solve for x
x = 1,063,500,615,743.96/1,118,454.24 - Step 6: Final answer
x = 950,866.45
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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.