Finding the Fourth Proportional to 742,307.10, 1,024,395.71 and 402,775.35
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Solution
The fourth proportional to 742,307.10, 1,024,395.71 and 402,775.35 is: 555,836.44
Step by Step Solution
- Step 1: Write the proportion equation
742,307.10 : 1,024,395.71 = 402,775.35 : x - Step 2: Convert to fraction form
742,307.10/1,024,395.71 = 402,775.35/x - Step 3: Cross multiply
742,307.10x = 1,024,395.71 × 402,775.35 - Step 4: Simplify right side
742,307.10x = 412,601,338,619.87 - Step 5: Solve for x
x = 412,601,338,619.87/742,307.10 - Step 6: Final answer
x = 555,836.44
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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.