Finding the Fourth Proportional to 740,461.60, 1,021,073.28 and 633,386.08
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Solution
The fourth proportional to 740,461.60, 1,021,073.28 and 633,386.08 is: 873,419.50
Step by Step Solution
- Step 1: Write the proportion equation
740,461.60 : 1,021,073.28 = 633,386.08 : x - Step 2: Convert to fraction form
740,461.60/1,021,073.28 = 633,386.08/x - Step 3: Cross multiply
740,461.60x = 1,021,073.28 × 633,386.08 - Step 4: Simplify right side
740,461.60x = 646,733,602,211.94 - Step 5: Solve for x
x = 646,733,602,211.94/740,461.60 - Step 6: Final answer
x = 873,419.50
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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.