Finding the Fourth Proportional to 1,249,511.52, 1,724,266.80 and 740,131.68
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Solution
The fourth proportional to 1,249,511.52, 1,724,266.80 and 740,131.68 is: 1,021,346.71
Step by Step Solution
- Step 1: Write the proportion equation
1,249,511.52 : 1,724,266.80 = 740,131.68 : x - Step 2: Convert to fraction form
1,249,511.52/1,724,266.80 = 740,131.68/x - Step 3: Cross multiply
1,249,511.52x = 1,724,266.80 × 740,131.68 - Step 4: Simplify right side
1,249,511.52x = 1,276,184,483,452.22 - Step 5: Solve for x
x = 1,276,184,483,452.22/1,249,511.52 - Step 6: Final answer
x = 1,021,346.71
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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.